“Frequency and Risk Factors of Postoperative Pulmonary Complications After Major Abdominal Surgery: A Prospective Observational Study at Hayatabad Medical Complex Peshawar”. Pakistan Journal of Medical & Cardiological Review, vol. 5, no. 1, Mar. 2026, pp. 4162-77, https://doi.org/10.5281/zenodo.21602766.