title: The "Heather Index" in impedance cardiography.
authors.forename: M
authors.initials: M
authors.lastname: Linde
authors.forename: E E
authors.initials: EE
authors.lastname: Ohnhaus
authors.forename: W
authors.initials: W
authors.lastname: Kirch
mesh_terms: D002307:Cardiography, Impedance / Q000379:methods*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D006333:Heart Failure / Q000188:drug therapy*; D006801:Humans; D008875:Middle Aged; D009200:Myocardial Contraction / Q000187:drug effects*; D009543:Nifedipine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D015737:Nisoldipine; D010992:Plethysmography, Impedance / Q000379:methods*; D011897:Random Allocation
chemical_list: D015737:Nisoldipine; D009543:Nifedipine