title: [Variations in respiratory sinus arrhythmia presented by continuous registration of pulse frequency].
authors.forename: K
authors.initials: K
authors.lastname: MECHELKE
authors.forename: H J
authors.initials: HJ
authors.lastname: MEITNER
mesh_terms: D001146:Arrhythmia, Sinus; D001145:Arrhythmias, Cardiac; D006339:Heart Rate; D006801:Humans; D011674:Pulse; D065809:Respiratory Sinus Arrhythmia