title: Massive acute pulmonary embolism. The deceivingly nonspecific manifestations.
mesh_terms: D000208:Acute Disease; D000792:Angiography; D003276:Contraceptives, Oral / Q000009:adverse effects; D004417:Dyspnea / Q000209:etiology; D004562:Electrocardiography; D006333:Heart Failure / Q000150:complications; D006801:Humans; D009369:Neoplasms / Q000150:complications; D011655:Pulmonary Embolism / Q000139:chemically induced / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000209:etiology
chemical_list: D003276:Contraceptives, Oral