Ra, Dongyeob, Chankyu Han, Sungho Moon, Kangmin Kim, and Jonghwa Lee. “Measurement Inaccuracy of Wearable Photoplethysmogram in Military Smartwatch”. Journal of Advances in Military Studies 7, no. 1 (May 13, 2024): 1-21. Accessed November 23, 2024. https://journal.idap.re.kr/index.php/JAMS/article/view/234.