Khan, Sadaf, Gajendra Kumar Gupta, Deepika Agrawal, Syed Hasan Nawaz Zaidi, Jyoti Batra, Sabin Syed, Lokesh Sharma, et al. “The Big Catch-Up: Addressing Zero-Dose Children As a Surrogate of Vaccination Disruptions During Public Health Emergencies”. ESI Preprints (European Scientific Journal, ESJ) 33 (September 24, 2024): 286. Accessed May 16, 2026. https://esipreprints.org/index.php/esipreprints/article/view/1288.