Baske, S., Saha, S., & Pal, P. P. (2021). Comparison between two natural surfactant poractant alfa and bovine lipid extract in respiratory distress syndrome amongst preterm neonates-a quasi-experimental study. International Journal of Contemporary Pediatrics, 9(1), 27–31. https://doi.org/10.18203/2349-3291.ijcp20214848