Roy, Avijit, et al. “A Sero-Epidemiological Study Evaluating Antibodies Against COVID 19 Infection in Andaman and Nicobar Islands, India ”. Indian Journal of Preventive & Social Medicine, vol. 54, no. 3, Oct. 2023, pp. 116-2, https://ijpsm.co.in/index.php/ijpsm/article/view/38.