Dr. Pavan Kumar Jerry, Dr. Manjunatha Babu R, and Dr. Susheela C. “Factors Influencing Acceptance of Optional Vaccines in Children”. Pediatric Review: International Journal of Pediatric Research 5, no. 1 (January 31, 2018): 13-18. Accessed July 3, 2024. https://pediatrics.medresearch.in/index.php/ijpr/article/view/347.