Ruchika Lulla (Sadhwani), Priyanka Jaiswal, Narayan R. Sadhwani, and Nilesh N. Sadhwani. “Emerging Respiratory Virus: COVID-19-Basic Concepts and Its Impact on Immunisation of Vaccine Preventable Diseases”. International Journal of Research in Pharmaceutical Sciences, vol. 11, no. (SPL 1), Dec. 2020, pp. 1830-5, https://ijrps.com/home/article/view/2128.