title: Prone positioning of patients with acute respiratory failure.
authors.forename: Jan G
authors.initials: JG
authors.lastname: Zijlstra
authors.forename: Jack J M
authors.initials: JJ
authors.lastname: Ligtenberg
authors.forename: Tjip S
authors.initials: TS
authors.lastname: van der Werf
mesh_terms: D006801:Humans; D016684:Prone Position; D011659:Pulmonary Gas Exchange; D012121:Respiration, Artificial / Q000009:adverse effects / Q000379:methods*; D012128:Respiratory Distress Syndrome / Q000401:mortality / Q000628:therapy*; D013997:Time Factors