title: Refining the prescription for fish oil. Fish oil may not help those with implanted defibrillators.
mesh_terms: D000818:Animals; D001145:Arrhythmias, Cardiac / Q000209:etiology / Q000517:prevention & control*; D017147:Defibrillators, Implantable; D015525:Fatty Acids, Omega-3 / Q000627:therapeutic use*; D005399:Fishes; D006801:Humans
chemical_list: D015525:Fatty Acids, Omega-3