Wakitani, Shigeyuki, et al. “Hepatocyte Growth Factor Facilitates Cartilage Repair: Full Thickness Articular Cartilage Defect Studied in Rabbit Knees”. Acta Orthopaedica, vol. 68, no. 5, Jan. 1997, pp. 474-80, doi:10.3109/17453679708996266.