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”. European Scientific Journal, ESJ 33 (September 22, 2024): 286. Accessed April 18, 2025. https://test.eujournal.org/index.php/esj/article/view/18564.