title: Artificial organs--forty years and beyond.
mesh_terms: D000818:Animals; D001187:Artificial Organs / Q000266:history*; D006354:Heart, Artificial / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D007423:Intra-Aortic Balloon Pumping; D007688:Kidneys, Artificial / Q000266:history*; D012756:Sheep; D014481:United States