Effectiveness of Covishield vaccine in preventing Covid-19 – A test-negative case-control study
bioRxiv (2021) - Comments
doi: 10.1101/2021.07.19.21260693 

Stuti Pramod, Dhanajayan Govindan, Premkumar Ramasubramani, Sitanshu Sekhar Kar, Rakesh Aggarwal, Nandhini Manoharan, Palanivel Chinnakali, Mahalakshmy Thulasingam, Sonali Sarkar, Molly Mary Thabah