Responsiveness of the anterior cruciate ligament - Return to Sports after Injury (ACL-RSI) and Injury - Psychological Readiness to Return to Sport (I-PRRS) scales - Slagers, A. J.; van den Akker-Scheek, I.; Geertzen, J. H. B.; Zwerver, J.; Reininga, I. H. F. (Journal of Sports Sciences, 2019)