Quality comparison between two different types of platelet-rich plasma for knee osteoarthritisTakanori Wakayama, Yoshitomo Saita, Yohei Kobayashi, Hirofumi Nishio, Sayuri Uchino, Shin Fukusato, Hiroshi Ikeda and Kazuo KanekoRegen Med Res, 8 (2020) 3DOI: https://doi.org/10.1051/rmr/200002