Hossain, A. I., Hosain, N., Islam, S. M., Shahidullah, A., Rahman, Z., Rahhman, M., & Kashem, M. A. (2019). Sildenafil in Perioperative Management of Congenital Shunt Anomaly Patients with Pulmonary Hypertension. Cardiovascular Journal, 12(1), 9–12. https://doi.org/10.3329/cardio.v12i1.43412