title: Morphological alteration of the natural heart with various types of long-term assist pumps.
mesh_terms: D000818:Animals; D001243:Assisted Circulation / Q000379:methods*; D002417:Cattle; D009206:Myocardium / Q000473:pathology*; D013997:Time Factors; D014693:Ventricular Fibrillation / Q000209:etiology / Q000473:pathology