https://www.newsbuyback.com/2020/09/oxford-astrazeneca-%e0%a4%95%e0%a5%80-covid-19-vaccine-%e0%a4%95%e0%a4%be-trial-%e0%a4%b0%e0%a5%81%e0%a4%95%e0%a4%be-serum-institute-of-india-%e0%a4%95%e0%a5%8b-notice-dcgi/
Oxford-Astrazeneca की Covid-19 Vaccine का trial रुका, Serum Institute of India को notice | DCGI