Chong VH.
J Gastrointestin Liver Dis. 2010 Dec; 19(4):462-3. No abstract available.
Correspondence: Chong VH, Endoscopy Unit, Raja Isteri Pengiran Anak Saleha (RIPAS) Hospital, Bandar Seri Begawan, BA 1710, Brunei Darussalam, email: chongvuih@yahoo.co.uk.