Ilyas, Aimen, Muhammad Muaaz Sikandar, Ghulam Abbas, Ali Qadir, Iqra Shehzadi, and Muhammad Awais. 2024. “Systematic Review: Effectiveness of Early Chest Physiotherapy in Preventing Postoperative Pulmonary Complications in Patients Undergoing Thoracic or Abdominal Surgery”. Indus Journal of Bioscience Research 2 (02): 951-60. https://doi.org/10.70749/ijbr.v2i02.319.