Vaithialingam, Balaji, and Arun BG. “Heat and Moisture Exchanger Filter As a Substitute for T-Piece Device - A Novel Approach”. Asian Journal of Medical Sciences 14, no. 2 (February 1, 2023): 245–246. Accessed June 17, 2024. https://www.nepjol.info/index.php/AJMS/article/view/51099.