Jatav, R.K., Kumbhare, M.B., Srinivas, M., Rao, D.R., Kumar, P.G., Reddy, P.R. and Manjusha, M. 2017. Prevalence and pattern of congenital heart diseases in Karimnagar, Andhra Pradesh, India: diagnosed clinically and by trans-thoracic-two-dimensional echocardiography. International Journal of Research in Medical Sciences. 2, 1 (Jan. 2017), 186–192.