1 FAST Programme, Alexandra Hospital, National University Health System, Singapore.
2 FAST Programme, Alexandra Hospital, National University Health System, Singapore; Division of Advanced Internal Medicine, Department of Medicine, National University Hospital, National University Health System, Singapore.
3 Department of Diagnostic Imaging, National University Hospital, National University Health System, Singapore.
4 FAST Programme, Alexandra Hospital, National University Health System, Singapore; Division of Advanced Internal Medicine, Department of Medicine, National University Hospital, National University Health System, Singapore. Electronic address: [email protected].