Kariyappa, M., and S. Shivarudrappa. “N-Terminal Pro Brain Natriuretic Peptide As a Marker of Myocardial Dysfunction in Newborns With Perinatal Asphyxia”. International Journal of Contemporary Pediatrics, vol. 7, no. 5, Apr. 2020, pp. 997-1002, doi:10.18203/2349-3291.ijcp20201524.