Erratum to: J Gastroenterol DOI 10.1007/s00535-010-0240-6

The name of the eighth author should be given as Harumasa Yoshihara, not Naomasa Yoshihara.

The author’s affiliation and e-mail address also appeared incorrectly. The correct affiliation and e-mail address are as follows:

H. Yoshihara

Department of Internal Medicine,

Osaka Rosai Hospital, Osaka, Japan

e-mail: hyoshihara@orh.go.jp