Assavanopakun, Pheerasak, and Naesinee Chaiear. 2020. “Measles Immunity Among New Health Personnel at a Faculty of Medicine in Khon Kaen Province, Thailand, 2019”. Outbreak, Surveillance, Investigation & Response (OSIR) Journal 13 (1):26-32. https://doi.org/10.59096/osir.v13i1.262853.