Platelet-rich plasma (PRP) for patellar tendinopathy: a randomized controlled trial of leukocyte-rich PRP or leukocyte-poor PRP vs. saline. (October 2019) - Scott, A.; Laprade, R.; Harmon, K.; Filardo, G.; Kon, E.; Villa, S. Della; Bahr, R.; Moksnes, H.; Torgalsen, T.; Dragoo, J.; Engebretsen, L.