Duriyaprapan, Pornchanan, Erjongmanee, Anchalee, Kittiphichai, Withoone, ​Sengkhampha​, Kanokwan, AND Tuboonmar, Kunyanut. "Effectiveness of the CoronaVac Vaccine on Symptomatic COVID-19 Infection, Severe Disease, ICU/semi-ICU Admission, and Mortality in Samut Sakhon Province: a Test-Negative Case-Control Study" OSIR Journal [Online], Volume 15 Number 2 (30 June 2022)