title: Prevention of pulmonary embolism.
mesh_terms: D005337:Fibrin / Q000032:analysis*; D005340:Fibrinogen / Q000032:analysis; D006386:Hemagglutination Tests; D006801:Humans; D007841:Latex Fixation Tests; D011655:Pulmonary Embolism / Q000175:diagnosis*
chemical_list: D005337:Fibrin; D005340:Fibrinogen