[1] Yong Loo Lin School of Medicine,Endocrinology Division, Department of Medicine
[2] National University of Singapore,Endocrinology Division
[3] National University Hospital,Division of Thyroid & Endocrine Surgery, Department of Endocrine Surgery
[4] Singapore,Department of Surgery
[5] 1E Kent Ridge Rd,undefined
[6] Yong Loo Lin School of Medicine,undefined
[7] National University Singapore,undefined
[8] National University Hospital,undefined
[9] Yong Loo Lin School of Medicine,undefined
[10] National University of Singapore,undefined