title: Letter: Pulsus alternans.
mesh_terms: D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D003521:Cyclopropanes / Q000009:adverse effects*; D004285:Dogs; D006801:Humans; D006973:Hypertension / Q000209:etiology; D011674:Pulse / Q000187:drug effects; D013610:Tachycardia / Q000209:etiology
chemical_list: D003521:Cyclopropanes