title: Is amitriptyline really effective in diarrhoea-predominant irritable bowel syndrome?: authors' reply.
authors.affiliation: Digestive Disease Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: H
authors.initials: H
authors.lastname: Vahedi
authors.forename: S
authors.initials: S
authors.lastname: Merat