Chonwipha Teerasantipun, MD, Chonwipha, Wittaya Pichetweerachai, MD, Nattaphol Pruetpongpun, MD, Kanokwan Suwannawat, RN, Warut Chaiwong, BSc, MPH, and Chaiyos Kunanusont, MD, PhD. 2021. “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 17 (2), 110.