objective(226) Result(214) COVID-19(197) SARS-CoV-2(95) supplementary material(86) pandemic(59) COVID-19 pandemic(54) Patient(50) coronavirus(48) conducted(47) Health(47) identify(39) reported(39) reduced(38) risk(38) information(37) Infection(37) Prevalence(35) China(32) public health(31) individual(31) vaccination(30) Iran(30) virus(30) Treatment(30) association(29) Spread(28) Effect(28) IMPROVE(27) the patient(26)