Sawada, Tadashi, Nao Tateyama, Takara Ikeda, and Keisou Ishimaru. 2020. “The Effect on Muscle Hardness of Acupuncture Stimulation Using Low-Reactive Level Laser Therapy and Silver Spike Point Therapy, Along With Stretching”. Laser Therapy 29 (1): 41-46. https://doi.org/10.5978/islsm.20-OR-04.