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Publications

You can also refer to my Google Scholar Profile and DBLP for my publications.

Edited Books

  1. Simon Harper and Yeliz Yesilada. Web Accessibility: A Foundation for Research. Springer, 2008. ISBN: 978-1-84800-050-6.

Academic Journals

  1. Şukru Eraslan, Yeliz Yeşilada and Simon Harper. Less users more confidence: How AOIs don’t affect scanpath trend analysis. Journal of Eye Movement Research, Volume: 10, Number: 4, 2017.
  2. Elgin Akpinar and Yeliz Yesilada. Discovering Visual Elements of Web Pages and Their Roles: Users’ Perception. Interacting with Computers, 2017, 29 (6), 845-867.
  3. Yavuz Inal, Kerem Rizvanoglu and Yeliz Yesilada. Web Accessibility in Turkey: Awareness, Understanding and Practices of User Experience Professionals, Universal Access in the Information Society, 2017, p.1-12.
  4. Şukru Eraslan, Yeliz Yeşilada and Simon Harper. Scanpath Trend Analysis on Web Pages: Clustering Eye Tracking Scanpaths. ACM Transactions on the Web, Volume 10 Issue 4, December 2016 (SCI – Best Paper Runner Up at the School of Computer Science Research Symposium 2016, University of Manchester).
  5. Giorgio Brajnik, Markel Vigo, Yeliz Yesilada, and Simon Harper (2016). Group Versus Individual Web Accessibility Evaluations: Effects with Novice Evaluators, Interacting with Computers, Volume 28, Issue 6, 19 November 2016, Pages 843–861.
  6. Sukru Eraslan, Yeliz Yesilada, and Simon Harper (2016). Eye tracking scanpath analysis techniques on web pages: A survey, evaluation and comparison, Journal of Eye Movement Research 9(1):2, 1-19.
  7. Sukru Eraslan and Yeliz Yesilada. Patterns in Eyetracking Scanpaths and the Affecting Factors. Journal of Web Engineering, Volume: 14, No. 5&6 (2015), pages 363-385, Rinton Press (SCI-E). ISSN: 1540-9589.
  8. Yeliz Yesilada, Giorgio Brajnik, Markel Vigo and Simon Harper. Exploring perceptions of web accessibility: a survey approach. Behaviour and Information Technology, 34(2): 119-134, 2015; DOI: 10.1080/0144929X.2013.848238 (SCI-E, SSCI Type A). ISSN: 0144-929X.
  9. Giorgio Brajnik, Yeliz Yesilada, and Simon Harper, Is accessibility conformance an elusive property? A study of validity and reliability of WCAG 2.0, ACM Transactions on Accessible Computing, vol. 4, iss. 2, p. 8:1-8:28, 2012.
  10. Simon Harper and Yeliz Yesilada. Emerging technologies and web accessibility: research challenges and opportunities focusing on vision issues. Disability and Rehabilitation: Assistive Technology 7 (1), 1-19, 2012.
  11. Tianyi Chen, Simon Harper, and Yeliz Yesilada, How do people use their mobile phones? A field study of small device users, International Journal of Mobile Human Computer Interaction (IJMHCI) — IGI Global, vol. 3, iss. 1, pp. 37-54, 2011.
  12. Simon Harper, Yeliz Yesilada and Tianyi Chen. Mobile device impairment … similar problems, similar solutions? Behaviour and Information Technology Volume 30, Issue 5, 2011 (SCI, SSCI).
  13. Yeliz Yesilada, Giorgio Brajnik, and Simon Harper, Barriers Common to Mobile and Disabled Web Users, Interacting With Computers, vol. 23, iss. 5, pp. 525-542, 2011 (SCI).
  14. Giorgio Brajnik, Yeliz Yesilada, and Simon Harper, Web Accessibility Guideline Aggregation for Older Users and Its Validation, Universal Access in the Information Society, vol. 10, iss. 4, 2011 (SCI-E).
  15. Giorgio Brajnik, Yeliz Yesilada, and Simon Harper. The Expertise Effect on Web Accessibility Evaluation Methods. Human Computer Interaction, vol. 26, iss. 3, pp. 1-38, 2011 (SCI).
  16. Yeliz Yesilada, Simon Harper, Tianyi Chen, Shari Trewin. Small Device Users Situationally Impaired by Input. Computers in Human Behaviour. Volume 26, Issue 3, May 2010, Pages 427–435 (Social SCI).
  17. Tianyi Chen, Yeliz Yesilada, Simon Harper. What Input Errors Do You Experience? Typing and Pointing Errors of Mobile Web Users. International Journal of Human-Computer Studies, Elsevier, 68:138-157, 2009 (SCI and Social SCI).
  18. Sean Bechhofer, Yeliz Yesilada, Robert Stevens and Simon Jupp. Using Ontologies and Vocabularies for Dynamic Linking. In IEEE Internet Computing, 12(3):32-39, 2008 (SCI).
  19. Simon Harper, Yeliz Yesilada, Carole A. Goble. Building the Mobile Web: rediscovering accessibility? Universal Access in the Information Society 6(3): 219-220, 2007 (SCI-E, SSCI). ISSN: 1615-5289.
  20. Yeliz Yesilada, Robert Stevens, Simon Harper and Carole Goble. Evaluating DANTE: Semantic Transcoding for Visually Disabled Users. ACM Transactions Computer-Human Interaction, 14(3):0-0, 2007 (SCI Expanded).
  21. Simon Harper and Yeliz Yesilada. Web Authoring for Accessibility (WAfA). Web Semantics: Science, Services and Agents on the World Wide Web, 5(3):175-179, 2007 (SCI).
  22. Simon Harper and Yeliz Yesilada and Carole Goble. Introduction. New Review of Hypermedia and Multimedia, Vol. 10, No. 2, 115-126, 2004 (SCI-E). DOI: 10.1080/13614560412331325271. ISSN: 1361-4568

Books and Book Chapters

  1. Andy Brown, Yeliz Yesilada, Caroline Jay, Simon Harper. The Blind leading the blind: Web accessibility research leading mobile Web usability. In Mobile Web 2.0: Developing and Delivering Services to Mobile Phones, S.A. Ahson (ed.), 2009.
  2. Simon Harper, Yeliz Yesilada. Web Accessibility: Current Trends. In Handbook of Research on Personal Autonomy Technologies and Disability Informatics, Awaiting Publication, IGI Global, December 2009.
  3. Simon Harper and Yeliz Yesilada. Web Accessibility and Guidelines. In Web Accessibility: A Foundation for Research, Springer, 2008.
  4. Yeliz Yesilada, Sean Bechhofer and Bernard Horan. Dynamic Linking of Web Resources – Customisation and Personalisation. In a Springer Series on Studies in Computational Intelligence, M. Wallace, M. Angelides, P. Mylonas (eds.), Springer Series Studies in Computational Intelligence, 2007.

Conference Proceedings

  1. Victoria Yaneva, Le An Ha, Ruslan Mitkov, Sukru Eraslan and Yeliz Yesilada. Detecting Autism Based on Eye-Tracking Data from Web Searching Tasks. Proceedings of the 15th Web for All Conference (W4A) 2018, ACM.
  2. Carlos Duarte, Ana Salvado, Luis Carrico, M Elgin Akpinar and Yeliz Yesilada. Automatic Role Detection of Visual Elements of Web Pages for Automatic Accessibility Evaluation. Proceedings of the 15th Web for All Conference (W4A) 2018, ACM.
  3. Sukru Eraslan, Yeliz Yesilada and Simon Harper. Engineering Web-based Interactive Systems: Trend Analysis in Eye Tracking Scanpaths with a Tolerance. In Proceedings of the 9th ACM SIGCHI Symposium on Engineering Interactive Computing Systems, EICS 2017, 2017.
  4. Sukru Eraslan, Victoria Yaneva, Yeliz Yesilada and Simon Harper. Do Web Users with Autism Experience Barriers When Searching for Information Within Web Web Pages? Proceedings of the 14th Web for All conference on the Furture of Accessible Employment, 2017.
  5. Eda Koksal, Yeliz Yesilada and Simon Harper. Twisting Web Pages for Saving Energy. International Conference on Web Engineering (ICWE 2017), 225-245, Lecture Notes in Computer Science, Springer, volume 10360.
  6. Sukru Eraslan, Yeliz Yesilada and Simon Harper. Trends in Eye Tracking Scanpaths: Segmentation Effect? Proceedings of the 27th ACM Conference on Hypertext and Social Media, pages 15-25, ACM (2016).
  7. Sukru Eraslan, Yeliz Yesilada and Simon Harper and Alan Davies. What is Trending in Eye Tracking Scanpaths on Web Pages? In Proceedings of Measuring Behavior 2016, MB 2016, pages 341-343, Dublin, Ireland, 2016.
  8. Sukru Eraslan, Yeliz Yesilada and Simon Harper. Eye tracking scanpath analysis on web pages: how many users? Proceeding ETRA ’16 Proceedings of the Ninth Biennial ACM Symposium on Eye Tracking Research and Applications, Pages 103-110. DOI: 10.1145/2857491.2857519, ACM (2016)
  9. Eda Koksal and Yeliz Yesilada. Web Sayfalarının Enerji Tasarrufu icin Donusturulmesi. Proceedings of the 9th Turkish National Software Engineering Symposium (UYMS), Izmir, 2015.
  10. Simon Harper, Ahmad Moon, Markel Vigo, Giorgio Brajnik and Yeliz Yesilada. DOM block clustering for enhanced sampling and evaluation, Proceedings of the 12th Web for All Conference (W4A) 2015, ACM, ISBN: 978-1-4503-3342-9
  11. M. Elgin Akpnar and Yeliz Yesilada. ”Old habits die hard!”: eyetracking based experiential transcoding: a study with mobile users, Proceedings of the 12th Web for All Conference (W4A) 2015, ACM, ISBN: 978-1-4503-3342-9
  12. Sukru Eraslan, Yeliz Yesilada, Simon Harper. Identifying Patterns in Eyetracking Scanpaths in Terms of Visual Elements of Web Pages. International Web Engineering Conference (ICWE) 2014: 163-180
  13. Tiago João Vieira Guerreiro, Jeffrey P. Bigham, Luís Carriço, Daniel Gonçalves, Yeliz Yesilada, Shadi Abou-Zahra: Third mobile accessibility workshop. CHI Extended Abstracts 2013: 3287-3290
  14. M. Elgin Akpınar, Yeliz Yeşilada: Heuristic role detection of visual elements of web pages. In: Daniel, F., Dolog, P., Li, Q. (eds.) Web Engineering. Lecture Notes in Computer Science, vol. 7977, pp. 123-131. Springer (2013)
  15. M. Elgin Akpınar, Yeliz Yeşilada: Vision Based Page Segmentation Algorithm: Extended and Perceived Success. In: Sheng Q. Z. and Kjeldskov J. (eds.) Current Trends in Web Engineering – ICWE 2013 Workshops and PhD Symposium. Lecture Notes in Computer Science, vol. 8295, pp. 238-252. Springer (2013)
  16. Sükrü Eraslan, Yeliz Yeşilada, Simon Harper: Understanding Eye Tracking Data for Re-engineering Web Pages. In: Sheng Q. Z. and Kjeldskov J. (eds.) Current Trends in Web Engineering – ICWE 2013 Workshops and PhD Symposium. Lecture Notes in Computer Science, vol. 8295, pp. 345-349. Springer (2013)
  17. Simon Harper, Yeliz Yesilada, Markel Vigo: W4A camp report: “2012 edition”. W4A 2013: 10
  18. Şükrü Eraslan, Yeliz Yeşilada, Simon Harper: Analysis of algorithms to identify patterns in eye-tracking scanpaths. In: Signal Processing and Communications Applications Conference (SIU), 2013 21st. pp. 1-4 (2013)
  19. Yeliz Yeşilada, Simon Harper, Şükrü Eraslan: Experiential transcoding: an eyetracking approach. In: Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility. pp. 30:1-30:4. W4A’13, ACM, New York, NY, USA (2013)
  20. Yeliz Yesilada, Giorgio Brajnik, Markel Vigo, Simon Harper: Understanding web accessibility and its drivers. W4A 2012: 19
  21. Yeliz Yesilada, Tianyi Chen, and Simon Harper, “A simple solution: solution migration from disabled to small device context,” in W4A ‘10: Proceedings of the 2010 International Cross Disciplinary Conference on Web Accessibility (W4A), New York, NY, USA, 2010, pp. 1-2.
  22. Giorgio Brajnik, Yeliz Yesilada, and Simon Harper, “Testability and Validity of WCAG 2.0: The Expertise Effect,” in To be published at ASSETS 2010: In Proceedings of the 12th international ACM SIGACCESS conference on Computers and accessibility, 2010.
  23. Giorgio Brajnik, Yeliz Yesilada, and Simon Harper, “Guideline aggregation: web accessibility evaluation for older users,” in W4A ‘09: Proceedings of the 2009 International Cross-Disciplinary Conference on Web Accessibililty (W4A), New York, NY, USA, 2009, pp. 127-135.
  24. Yeliz Yesilada, Giorgio Brajnik, and Simon Harper, “How much does expertise matter?: a barrier walkthrough study with experts and non-experts,” in Assets ‘09: Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility, New York, NY, USA, 2009, pp. 203-210.
  25. Yeliz Yesilada, C. Jay, Robert Stevens, and Simon Harper, “Validating the Use and Role of Visual Elements of Web Pages in Navigation with an Eye-Tracking Study,” in 17th International World Wide Web Conference, Beijing, China, 2008.
  26. Simon Jupp, Robert Stevens, Sean Bechhofer, Yeliz Yesilada, and P. Kostkova, “Knowledge Representation for Web Navigation,” in Semantic Web Applications and Tools for the Life Sciences (SWAT4LS 2008) Workshop, 2008.
  27. Simon Jupp, Robert Stevens, Sean Bechhofer, P. Kostkova, and Yeliz Yesilada, “Document navigation: Ontology or Knowledge Organisation System?,” in Network Tools and Applications in Biology (NETTAB’2007) – A Semantic Web for Bioinformatics: Goals, Tools, Systems, Applications, 2007.
  28. Yeliz Yesilada, Darren Lunn, and Simon Harper, “Experiments toward reverse linking on the web,” in HT ‘07: Proceedings of the 18th conference on Hypertext and hypermedia, Manchester, UK, 2007, pp. 3-10.
  29. Lisa Stringer, Yeliz Yesilada, and Simon Harper, “Experiments towards web 2.0 accessibility,” in HT ‘07: Proceedings of the 18th conference on Hypertext and hypermedia, New York, NY, USA, 2007, pp. 33-34.
  30. Simon Jupp, Sean Bechhofer, Patty Kostkova, Robert Stevens and Yeliz Yesilada. Converting Ontologies to Knowledge Organisation Systems for Document Navigation. The 10th Annual Bio-Ontologies Meeting 2007, Co-located with ISMB/ECCB 2007, At Vienna, Austria, Volume: pp. 9 -12, 2007.
  31. Sean Bechhofer, Yeliz Yesilada, and B. Horan, “COHSE: Knowledge-Driven Hyperlinks,” in Semantic Web Challenge at ISWC2006, 2006.
  32. Sean Bechhofer, Yeliz Yesilada, B. Horan, and Carole Goble, “Knowledge-Driven Hyperlinks: Linking in the Wild,” in Adaptive Hypermedia and Adaptive Web-Based Systems: 4th International Conference, AH 2006, Dublin, Ireland, June 21-23, 2006, 2006, pp. 1-10.
  33. Yeliz Yesilada, Sean Bechhofer, and B. Horan, “Personalised Dynamic Links on the Web,” in First International Workshop on Semantic Media Adaptation and Personalization (SMAP’06), 2006, pp. 7-12.
  34. Robert Stevens, Yeliz Yesilada, M. Schroeder, A. Burger, P. Kostkova, B. Habermann, and R. Dieng-Kuntz, “A Semantic Browser for a Web of Biomedicine,” in Health Care and Life Sciences Workshop, Athens, Georgia, USA, 2006.
  35. Peter Plessers, Sven Casteleyn, Yeliz Yesilada, Olga D. Troyer, Robert Stevens, Simon Harper, and Carole Goble, “Accessibility: A Web Engineering Approach,” in Proceedings of the Fourteenth International Conference on World Wide Web, Chiba, Japan, 2005, pp. 353-362.
  36. Simon Harper, Carole Goble, Robert Stevens, and Yeliz Yesilada, “Middleware to Expand Context and Preview in Hypertext,” in Proceedings of the ACM SIGACCESS Conference on Computers and Accessibility, 2004, pp. 63-70.
  37. Simon Harper, Yeliz Yesilada, Carole Goble, and Robert Stevens, “How Much is Too Much in a Hypertext Link? Investigating Context and Preview — A Formative Evaluation,” in Proceedings of the Fifteenth ACM Conference on Hypertext and Hypermedia, 2004, pp. 116-125.
  38. Yeliz Yesilada, Simon Harper, Carole Goble, and Robert Stevens, “DANTE Annotation and Transformation of Web Pages for Visually Impaired Users,” in Proceedings of the Thirteenth International Conference on World Wide Web, New York, USA, 2004.
  39. Yeliz Yesilada, Robert Stevens, Carole Goble, and S. Hussein, “Rendering Tables in Audio: The Interaction of Structure and Reading Styles,” in Assets’04, Atlanta, USA, 2004.
  40. Yeliz Yesilada, Simon Harper, Carole Goble, and Robert Stevens, “Screen Readers Cannot See (Ontology Based Semantic Annotation for Visually Impaired Web Travellers),” in Proceedings of the International Conference on Web Engineering (ICWE), 2004, pp. 445-458.
  41. Yeliz Yesilada, Simon Harper, Carole Goble, and Robert Stevens, “Ontology Based Semantic Annotation for Enhancing Mobility Support for Visually Impaired Web Users,” in K-CAP 2003 Workshop on Knowledge Markup and Semantic Annotation, Florida, USA, 2003.
  42. Yeliz Yesilada, Robert Stevens, and Carole Goble, “A Foundation for Tool Based Mobility Support for Visually Impaired Web Users,” in Proceedings of the Twelfth International Conference on World Wide Web, Budapest, Hungary, 2003, pp. 422-430.
  43. Simon Harper, Carole Goble, Robert Stevens, and Yeliz Yesilada, “Towel: Experiences of Augmenting the Web with Journey Knowledge,” in Proceedings of the The Twelfth International World Wide Web Conference, New York, USA, 2003.

Editorships

  1. Yeliz Yesilada, Rosta Farzan and Geert-Jan Houben (Eds.), 26th ACM Conference on Hypertext and Social Media (HT’15), Guzelyurt, TRNC, Cyprus September 01 – 04, 2015 . ACM, ISBN 978-1-4503-3395-5
  2. Yeliz Yesilada, Aysu Betin Can, Onur Demir ̈ors. Proceedings of the 8th Turkish National Software Engineering Symposium, Guzelyurt, KKTC, Turkey, September 8-10, 2014. CEUR Workshop Proceedings 1221, CEUR-WS.org 2014.
  3. Yeliz Yesilada: Special Issue ASSETS 2011. TACCESS 4(3): 12 (2012), ISSN: 1936-7228
  4. K. F. McCoy and Yeliz Yesilada (Eds.): The 13th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS ’11), Dundee, Scotland, UK, October 24-26, 2011. ACM, ISBN 978-1-4503-0920-2
  5. Simon Harper, Yeliz Yesilada, and Carole Goble (Eds.), Universal Access in the Information Society – Building the Mobile Web: rediscovering accessibility?, Volume 6, Issue 3, 2007, Springer, ISSN: 1615-5289
  6. Yeliz Yesilada and David Sloan (Eds.), Proceedings of the 2008 International Cross-disciplinary Workshop on Web Accessibility (W4A), Beijing, China, April 21 – 22, 2008, ACM, ISBN: 978-1-60558-153-8
  7. Simon Harper and Yeliz Yesilada (Eds.), W4A ’07: Proceedings of the 2007 International Cross-disciplinary Workshop on Web Accessibility (W4A), Banff, Canada, 2007, ACM, ISBN:1-59593-590-8
  8. Simon Harper, Yeliz Yesilada, and Carole Goble (Eds.), Journal of Web Engineering – Web Accessibility, Volume 5 Number 4, 2006, Rinton Press.
  9. Simon Harper, Yeliz Yesilada, and Carole Goble (Eds.), W4A ’06: Proceedings of the 2006 International Cross-disciplinary Workshop on Web Accessibility (W4A): Building the mobile web: rediscovering accessibility?, Edinburgh, UK, 2006, ACM, ISBN:1-59593-281-X
  10. Simon Harper, Yeliz Yesilada, and Carole Goble (Eds.), W4A ’05: Proceedings of the 2005 International Cross-disciplinary Workshop on Web Accessibility (W4A), Chiba, Japan, 2005, ACM, ISBN: 1-59593-219-4
  11. Simon Harper, Yeliz Yesilada, and Carole Goble (Eds.), The New Review of Hypermedia and Multimedia – Special issue: Accessible hypermedia and multimedia, Volume 10 Issue 2, 2004, Taylor and Francis, ISBN: 1361-4568
  12. Simon Harper, Yeliz Yesilada, and Carole Goble (Eds.), W4A ’04: Proceedings of the 2004 International Cross-disciplinary Workshop on Web Accessibility (W4A), New York, NY, USA, 2004, ACM, ISBN: 1-58113-903-9

Official Reports and Newsletter Articles

  1. Yeliz Yesilada and Jeffrey Bigham, ASSETS 2015 — Remembering Lisbon!, ACM SIGACCESS Newsletter, Hugo Nicolau (Ed.), Issue 114 January 2016, Article No. 1
  2. Yeliz Yesilada, Interview with Yeliz Yesilada, ACM SIGWEB Newsletter, Claus Atzenbeck (Ed.), Issue Summer 2015, Article No. 1, Summer 2015, ISSN: 1931-1745
  3. Yeliz Yesilada and Darren Lunn, Foster a Community Spirit: Get Involved!, ACM SIGWEB Newsletter, Issue Spring, 03/01/2010, Article No. 5, ISSN: 1931-1745
  4. David Sloan and Yeliz Yesilada, W4A 2008: a review, ACM SIGACCESS Accessibility and Computing, Issue 92, September 2008, ISSN: 1558-2337 Pages 23-25
  5. Yeliz Yesilada and Simon Harper, Web 2.0 and the semantic web: hindrance or opportunity?: W4A – International Cross-Disciplinary Conference on Web Accessibility 2007, SIGACCESS Accessibility and Computing – 20 years after Dexter Hypertext Reference Model, Issue 90, January 2008, Pages 19-31, ISSN: 1558-2337
  6. Yeliz Yesilada, Recent Additions to the SIGWEB Website, ACM SIGWEB Newsletter, Volume 2007, Autumn 2007, ACM, ISSN: 1931-1745 Article No. 4
  7. Yeliz Yesilada, Up and Coming SIGWEB Supported Conferences, ACM SIGWEB Newsletter, Volume 2007, Autumn 2007, ACM, ISSN: 1931-1745 Article No. 5
  8. Yeliz Yesilada, Sean Bechhofer, Bernard Horan. COHSE: Dynamic Linking of Web Resources. Technical Reports and Perspectives Essay Series – Sun Microsystems Laboratories Sun Microsystems Laboratories, No 167, SMLI TR-2007- 167, 2007.
  9. Simon Harper, Yeliz Yesilada, and Carole Goble. Building the Mobile Web: Rediscovering Accessibility? : W4A – Inter- national Cross-Disciplinary Workshop on Web Accessibility Workshop Report, ACM SIGACCESS Accessibility and Computing Newsletter, Issue 85, June 2006, Pages 21 – 32, 2006, ISSN: 1558-2337
  10. Simon Harper, Yeliz Yesilada, and Carole Goble. ”Engineering accessible design”: W4A – International Cross Disciplinary Workshop on Web Accessibility 2005 Workshop Report, ACM SIGACCESS Accessibility and Computing Newsletter, Issue 83, September 2005, Pages 64 – 72, ISSN: 1558-2337
  11. Simon Harper, Yeliz Yesilada, and Carole Goble. Workshop Report: W4A – International Cross Disciplinary Workshop on Web Accessibility 2004, ACM SIGCAPH Computers and the Physically Handicapped Newsletter, Issue 76, June 2003, Pages 2-3, ACM, ISSN: 0163-5727
  12. Yeliz Yesilada. Mobility Support for Visually Impaired Web Travellers. Research Report (Second Year Ph.D. Report) University of Manchester – Department of Computer Science, 2003.
  13. Yeliz Yesilada. Contextualised Travel Support for Visually Impaired Web Users. Research Report (First Year Ph.D. Report) University of Manchester- Department of Computer Science, 2002.

© Dr. Yeliz Yesilada