Serial magnetic resonance imaging of the donor site after harvesting the central third of the patellar tendon. A prospective study of 37 patients after arthroscopic anterior cruciate ligament reconstruction - Kartus, J; Lindahl, S; Köhler, K; Sernert, N; Eriksson, B I; Karlsson, J (Knee Surg Sports Traumatol Arthrosc, 1999)