Efficacy and safety of invasive laser acupuncture (650 and 830 nm) on knee osteoarthritis: A pilot randomized clinical trial. - Jang, Raeon; Yang, Changsop; Kim, Jae-Hong; Nam, Dongwoo; Shin, Jeong-Cheol; Park, Gwang-Cheon; Kang, Byoung-Kab; Shin, Kyung-Min; Kim, Ae-Ran (PLoS ONE, 2026)