Evaluation of the effect of a chicken comb extract-containing supplement on cartilage and bone metabolism in athletes

Masafumi Yoshimura, Yukihiro Aoba, Taiji Watari, Rei Momomura, Keita Watanabe, Akihito Tomonaga, Michitaka Matsunaga, Yoshimasa Suda, Woo Young Lee, Katsuhito Asai, Kaori Yoshimura, Takashi Nakagawa, Tetsuro Yamamoto, Hideyo Yamaguchi, Isao Nagaoka