Kaliakatsos, M. Tzetis, M. Kanavakis, E. Fytili, P. Chouliaras, G. Karachalios, Th. Malizos, K. Tsezou, A., Asporin and knee osteoarthritis in patients of Greek origin, Osteoarthritis and Cartilage, (14), 609-611, 2006, 1063-4584, 1522-9653