title: [Morphology "in M" of the apexcardiogram: its response to amyl nitrite and its significance].
mesh_terms: D000680:Amyl Nitrite / Q000494:pharmacology*; D006321:Heart / Q000187:drug effects*; D006323:Heart Arrest / Q000175:diagnosis*; D006801:Humans; D007702:Kinetocardiography; D008297:Male; D008875:Middle Aged
chemical_list: D000680:Amyl Nitrite
vernacular_title: Morfología "en M" del apexcardiograma: su respuesta al nitrito de amilo y significación