COVID-19(20) Practice(8) participant(7) Result(7) healthcare(6) health communication(6) Analysis(6) Support(6) Health(4) receive(4) COVID-19 pandemic(4) pandemic(4) Qualitative(4) objective(4) conducted(4) Vaccine(4) Randomly(4) assigned(4) communication(4) implication(4) Human(3) complex(3) Deontological ethics(3) Cultural cognition(3) resulting(3) First wave(3) Critically ill patient(3) benefit(3) surrogate(3) receiving(3)