Kleipool, A. E., van Loon, T., & Marti, R. K. (1994). Pain after use of the central third of the patellar tendon for cruciate ligament reconstruction: 33 patients followed 2-3 years. Acta Orthopaedica, 65(1), 62–66. https://doi.org/10.3109/17453679408993720