Baske, S., Saha, S. and 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), pp. 27–31. doi: 10.18203/2349-3291.ijcp20214848.