Epidemiological characterization of symptomatic and asymptomatic COVID-19 cases and positivity in subsequent RT-PCR tests in the United Arab Emirates. - Al-Rifai, Rami H.; Acuna, Juan; Al Hossany, Farida Ismail; Aden, Bashir; Al Memari, Shamma Abdullah; Al Mazrouei, Shereena Khamis; Ahmed, Luai A. (PLoS ONE, 2021)