Affiliation: | 1. Department of Pediatrics and Clinical Research Center, Sibu Hospital, Sibu, Sarawak, Malaysia;2. Lau King Howe Memorial Children Clinic, Divisional Health Office, Sibu, Sarawak, Malaysia;3. Faculty of Medicine, SEGi University Sibu Clinical Campus, Sibu, Sarawak, Malaysia;4. Clinical Epidemiology Unit, Clinical Research Center, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia |