CHEEMA, S. A. C., MIKRANI, B. ., JUMADIN, A. J., MAHMOOD, M. M. ., YASIR, M. Y. and NIAZI, A. K. . (2025) “Optimal Duration of Oral Sildenafil for Perioperative Management of Severe Pulmonary Hypertension in Mitral Valve Replacement”, Pakistan Journal of Medical & Health Sciences, 19(5), pp. 12–17. doi: 10.53350/pjmhs02025195.3.