title: Letter to the Editor.
authors.affiliation: Intensive Care Unit, Osaka University Hospital, Yamadaoka, Suita, Osaka 565, Japan. shimaoka@hp-icu.med.osaka-u.ac.jp
authors.initials: R
authors.lastname: Izumi
authors.initials: M
authors.lastname: Shimaoka
authors.initials: C
authors.lastname: Nagaoka
authors.initials: M
authors.lastname: Komaki
authors.initials: A
authors.lastname: Mizutani
authors.initials: M
authors.lastname: Yoh
authors.initials: T
authors.lastname: Honda
authors.initials: N
authors.lastname: Taenaka
authors.initials: I
authors.lastname: Yoshiya