Lin, Li-Chi, and Yi-Ying Lin. “The Biological Effectiveness and Medical Significance of Far Infrared Radiation (FIR)”. Malaysian Journal of Medical and Biological Research 8, no. 1 (June 20, 2021): 41–46. Accessed January 22, 2025. https://mjmbr.my/index.php/mjmbr/article/view/564.