Thantithaveewat, Thanawadee, Onphirul Yurachai, Sineenart Kulawong, Seesai Yeesoonsang, & Sopon Iamsirithaworn. "Case Screening Criteria for Early Detection of COVID-19 Cases in the First Wave of the Pandemic, Thailand." OSIR Journal [Online], 13.3 (2020): n. pag. Web. 26 Apr. 2024