RT Journal Article SR Electronic T1 Loss of zonal organization of articular cartilage after experimental subchondral trauma of the knee joint JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 649 OP 652 VO 28 IS 4 A1 Lahm, Andreas A1 Kreuz, Peter C. A1 El-Tayeh, Abed A1 Mrosek, Eike A1 Oberst, Michael A1 Haberstroh, Jorg A1 Merk, Harry YR 2007 UL http://smj.org.sa/content/28/4/649.abstract AB