Shweta Jain, Pankaj Kumar Jain, Ramakant Yadav, Surendra Kumar Jain, and Ankur Vaidya. “COVID-19 Pandemic: The Deadly Respiratory Disease of 21st Century ”. Current Research in Pharmaceutical Sciences 11, no. 1 (May 10, 2021): 01-18. Accessed June 18, 2021. http://crpsonline.com/index.php/crps/article/view/252.