Das, J. C., N. Paul, M. S. Alam, N. Mahmud, and J. D. Sharma. “Monitoring of Oxygen in Neonate: An Important Issue”. Journal of Chittagong Medical College Teachers' Association, vol. 21, no. 2, May 2011, pp. 30-34, doi:10.3329/jcmcta.v21i2.7735.