Yoshikawa, Yasuhiro, and Sven-Olof Abrahamsson. “Dose-Related Cellular Effects of Platelet-Derived Growth Factor-BB Differ in Various Types of Rabbit Tendons in Vitro”. Acta Orthopaedica, vol. 72, no. 3, Jan. 2001, pp. 287-92, doi:10.1080/00016470152846646.