Kamar, Sher Bahadur, Hemraj Pandey, Ramesh Shahi, Shurehraman Puri, Gopal Kumar Yadav, and Kapil Amgain. “Evaluation of SARS-CoV-2 Humoral Response Following Vaccination With ChAdOx1 NCoV-19 (Covishield™) and/Or Sinopharm, BBIBP-CorV (Vero cell™)”. Journal of Nepal Health Research Council 21, no. 3 (March 22, 2024): 523-529. Accessed October 3, 2025. http://103.69.126.137/index.php/jnhrc/article/view/4634.