Keshwani, Ajay K., and Swati S. Suroshe. “Correlation of Neonatal Gestational Age With Foot Length and Right Nipple to Umbilicus Distance”. International Journal of Contemporary Pediatrics 7, no. 6 (May 22, 2020): 1319–1324. Accessed October 25, 2025. https://www.ijpediatrics.com/index.php/ijcp/article/view/3368.