Singh, Poonam, and Dorothy Sengupta. “Impact Of School Health Program –A Retrospective Analysis of Pediatric Echo’s Done in A Tertiary Set-Up”. National Journal of Community Medicine 2, no. 03 (December 31, 2011): 409–412. Accessed May 3, 2024. https://njcmindia.com/index.php/file/article/view/1933.