Moraes, V. Y., M. Lenza, M. J. Tamaoki, F. Faloppa and J. C. Belloti (2014). "Platelet-rich therapies for musculoskeletal soft tissue injuries." Cochrane Database Syst Rev 4: CD010071.
Swart, N. M., et al. (2012). "The additional effect of orthotic devices on exercise therapy for patients with patellofemoral pain syndrome: a systematic review." Br J Sports Med 46(8): 570-577.