Tomonaga, A., Takahashi, T., Tanaka, Y. T., Tsuboi, M., Ito, K., & Nagaoka, I. (2017). Evaluation of the effect of salmon nasal proteoglycan on biomarkers for cartilage metabolism in individuals with knee joint discomfort: A randomized double-blind placebo-controlled clinical study. Exp Ther Med.

Tomonaga, Akihito, Tatsuji Takahashi, Yuka Tsuda Tanaka, Makoto Tsuboi, Kumie Ito, و Isao Nagaoka. "Evaluation of the Effect of Salmon Nasal Proteoglycan On Biomarkers for Cartilage Metabolism in Individuals With Knee Joint Discomfort: A Randomized Double-blind Placebo-controlled Clinical Study." Exp Ther Med 2017.

Tomonaga, Akihito, et al. "Evaluation of the Effect of Salmon Nasal Proteoglycan On Biomarkers for Cartilage Metabolism in Individuals With Knee Joint Discomfort: A Randomized Double-blind Placebo-controlled Clinical Study." Exp Ther Med 2017.