title: Response.
authors.affiliation: Department of Respiratory Medicine, Nagoya Medical Center, Nagoya, Japan. Electronic address: masahideo@aol.com.
authors.forename: Masahide
authors.initials: M
authors.lastname: Oki
authors.affiliation: Department of Respiratory Medicine, Nagoya Medical Center, Nagoya, Japan.
authors.forename: Hideo
authors.initials: H
authors.lastname: Saka