aDivision of Gastroenterology, Taipei Veterans General Hospital, Taiwan, R.O.C.
bDivision of General Medicine, Department of Medicine, Taipei Veterans General Hospital, Taiwan, R.O.C.
cDivision of National Yang-Ming University School of Medicine, Taipei, Taiwan, R.O.C.
dDivision of Gastroenterology, Department of Medicine, National Yang-Ming University Hospital, Yilan, Taiwan, R.O.C.
*Correspondence to: Dr Che-Chang Chan, Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei 112, Taiwan, R.O.C.
E-mail: [email protected]
Received: April 27, 2009; • Accepted: October 12, 2009.