title: Prevention of the recurrences of chronic thromboembolic disease.
mesh_terms: D000328:Adult; D000721:Ancrod / Q000008:administration & dosage / Q000627:therapeutic use; D000925:Anticoagulants / Q000008:administration & dosage / Q000627:therapeutic use; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011655:Pulmonary Embolism / Q000517:prevention & control*; D012008:Recurrence; D013924:Thrombophlebitis / Q000517:prevention & control*
chemical_list: D000925:Anticoagulants; D000721:Ancrod