title: Respiratory sinus arrhythmia and pulmonary gas exchange efficiency: time for a reappraisal.
authors.affiliation: martin.buchheit@aspire.qa
authors.forename: Martin
authors.initials: M
authors.lastname: Buchheit
mesh_terms: D000818:Animals; D001146:Arrhythmia, Sinus / Q000503:physiopathology*; D006339:Heart Rate; D006801:Humans; D011659:Pulmonary Gas Exchange