Kapoor, Sangeeta, Himani Muniyal, Anjali Verma, Sushil Yadav, Anil Kumar, Sudhir Kumar Gupta, Jyoti Trivedi, and Fozia Jamal. 2022. “Neutralizing IgG Antibody Seroprevalence, Efficacy and Safety Post Covishield Vaccination: A Follow up Study”. International Journal of Health Sciences 6 (S4):3882-94. https://doi.org/10.53730/ijhs.v6nS4.9355.