Tanaka, Hiroya, Kiyoshi Tamura, Kazue Takano, Norihiko Inoue, Hideo Yoshioka, Kazumitsu Odera, Yasuyuki Takaya, Toshimichi Ono, Hiroyasu Ando, and Yasushi Taguchi. “Serum Somatomedin a in Perthes’ Disease”. Acta Orthopaedica 55, no. 2 (January 1, 1984): 135–140. Accessed May 10, 2026. https://actaorthop.org/actao/article/view/23340.