D. K., S., R., R. and R., R. (2023) “A randomised controlled trial on effect of topical anaesthetics on injection pain during immunization in infants of 6 weeks to 6 months of age with pentavac vaccine”, International Journal of Contemporary Pediatrics, 10(3), pp. 295–299. doi: 10.18203/2349-3291.ijcp20230422.