Serdal Kenan Köse, Derya Öztuna, Şehim Kutlay, Atilla Halil Elhan, Alan Tennant, and Ayşe Adile Küçükdeveci. “Psychometric Properties of the Health Assessment Questionnaire Disability Index (HAQ-DI) and the Modified Health Assessment Questionnaire (MHAQ) in Patients With Knee Osteoarthritis”. Archives of Rheumatology 25, no. 3 (September 30, 2010): 147–155. Accessed October 3, 2025. http://anadolupsikiyatri.net/index.php/pub/article/view/365.