CHONWIPHA TEERASANTIPUN, MD, C.; PICHETWEERACHAI, MD, W.; PRUETPONGPUN, MD, N.; SUWANNAWAT, RN, K.; CHAIWONG, BSC, MPH, W.; KUNANUSONT, MD, PHD, C. The Effect of Training on Knowledge, Perception, and Practice of Healthcare Personnel on the Use of Respiratory Protective Equipment during COVID-19 Pandemic at a Private Hospital in the Northern part of Thailand. The Bangkok Medical Journal, v. 17, n. 2, p. 110, 29 Sep. 2021.