NAEEM, Muhammad; AZIZ, Majid; SAEED, Bilal; HASHMI, Syed Daood; ALI, Muhammad; JALIL, Meezan. Using Pre-Operative Incentive Spirometer Reduces Chances of Basal Atelectasis in Patients Undergoing Upper Abdominal Surgeries - A Randomized Controlled Trial. Pakistan Armed Forces Medical Journal, [S. l.], v. 75, n. SUPPL-2, p. S164-S168, 2025. DOI: 10.51253/pafmj.v75iSUPPL-2.11141. Disponível em: https://pafmj.org/PAFMJ/article/view/11141.. Acesso em: 9 apr. 2025.