title: Vagal mediation of respiratory sinus arrhythmia. Implications for drug delivery.
authors.affiliation: University of Maryland, College Park 20742.
authors.forename: S W
authors.initials: SW
authors.lastname: Porges
mesh_terms: D000109:Acetylcholine / Q000502:physiology; D000758:Anesthesia; D001146:Arrhythmia, Sinus / Q000209:etiology*; D006339:Heart Rate; D006801:Humans; D004364:Pharmaceutical Preparations / Q000008:administration & dosage; D014630:Vagus Nerve / Q000187:drug effects / Q000502:physiology*
chemical_list: D004364:Pharmaceutical Preparations; D000109:Acetylcholine