Devi PeramalahResearch Officer and Department of Social & Preventive Medicine, Faculty of MedicineUniversiti Malaya
Noor Iftitah Ab RahmanClinical Specialist. Department of Anaesthesia.University Malaya Medical Centre
DANIA ADILA AHMAD RUZAIDIDEPARTMENT OF CARDIOTHORACIC SURGERYDEPARTMENT OF CARDIOTHORACIC SURGERY, UNIVERSITY MALAYA NEDICAL CENTER, KUALA LUMPUR, MALAYSIA