TY - JOUR AU - Behrens, F; Kraft, EL; Oegema, TR TI - Biochemical changes in articular cartilage after joint immobilization by casting or external fixation JO - J Orthop Res VL - 07 PY - 1989 DO - 10.1002/jor.1100070305 L3 - PubMed-ID: 2703926 SP - 335 EP - 43. ER -