1 Department of Surgery, University Malaya Medical Center, 50603 Kuala Lumpur, Malaysia. Electronic address: [email protected]
2 Department of Social and Preventive Medicine, University Malaya Medical Center, 50603 Kuala Lumpur, Malaysia; Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, 3508GA Utrecht, Netherlands. Electronic address: [email protected]
3 Department of Surgery, University Malaya Medical Center, 50603 Kuala Lumpur, Malaysia. Electronic address: [email protected]
4 Department of Surgery, University Malaya Medical Center, 50603 Kuala Lumpur, Malaysia. Electronic address: [email protected]
5 Department of Surgery, University Malaya Medical Center, 50603 Kuala Lumpur, Malaysia. Electronic address: [email protected]
6 Department of Surgery, University Malaya Medical Center, 50603 Kuala Lumpur, Malaysia. Electronic address: [email protected]