BIERMA-ZEINSTRA, S. M. Joint space narrowing and relationship with symptoms and signs in adults consulting for hip pain in primary care. J. Rheumatol. 2002, 29, 1713-1718
KHAN, A. M. Hip osteoarthritis : where is the pain?. Ann. R. Coll. Surg. Engl. 2004, 86, 119-121
ORDEBERG, G. Characterization of joint pain in human OA. Novartis Found Symp. 2004, 260, 105-115