Thandaveshwara, Deepti, Sushma Krishnegowda, Divya Hosur, and Srinivasa Murthy Doreswamy. “Effect of Sildenafil on Mortality in Term Neonates With Hypoxemic Respiratory Failure Due to Persistent Pulmonary Hypertension (SIPHON) - A Randomised Control Trial”. Journal of Nepal Paediatric Society 41, no. 2 (November 3, 2021): 177–183. Accessed July 18, 2024. https://nepjol.info/index.php/JNPS/article/view/32403.