title: Is the Completion Time of a Questionnaire a Pivotal Factor When Proving Feasibility?: Author's Reply.
authors.affiliation: Gastroenterology Division, Yokohama City University Hospital, Yokohama, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Nonaka
authors.forename: Masahiko
authors.initials: M
authors.lastname: Inamori