[1]
S. Mathema, “The Impact of COVID-19 on Immunization Services”, J. Lumbini Med. Coll., vol. 8, no. 1, pp. 158–160, Jun. 2020, Accessed: Jul. 19, 2026. [Online]. Available: https://nepjol.info/index.php/JLMC/article/view/40790