Pham Ngoc Thach University of Medicine - Department of Epidemiology, Johns Hopkins University - Center of Excellence for Liver Disease in Vietnam, Johns Hopkins University - Center of Excellence for Liver Disease in Vietnam, Taipei Medical University, Johns Hopkins University - Center of Excellence for Liver Disease in Vietnam, Vietnam National University Ho Chi Minh City, Vietnam National University Ho Chi Minh City, Pham Ngoc Thach University of Medicine - Department of Epidemiology, Johns Hopkins University - Center of Excellence for Liver Disease in Vietnam, Johns Hopkins University - Center of Excellence for Liver Disease in Vietnam, affiliation not provided to SSRN, Johns Hopkins University - Center of Excellence for Liver Disease in Vietnam and Johns Hopkins University - Center of Excellence for Liver Disease in Vietnam