title: Clinician's commentary.
authors.affiliation: Respiratory Rehabilitation and Critical Care Medicine University Hospitals, Katholieke Universiteit Leuven B-3000, Belgium. rik.gosselink@faber.kuleuven.be
authors.forename: Rik
authors.initials: R
authors.lastname: Gosselink
authors.forename: Christophe
authors.initials: C
authors.lastname: Robbeets