1 Department of Radiology, Sengkang General Hospital, Singapore; Duke-NUS Medical School, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Lee Kong Chian School of Medicine, Singapore. Electronic address: clho2002@gmail.com.
2 Department of Radiology, Sengkang General Hospital, Singapore.
3 Department of Radiology, Sengkang General Hospital, Singapore; Duke-NUS Medical School, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Singapore General Hospital, Singapore.