neither in 20 patients given heparin as part of the surgical procedure or for prevention of superficial phlebitis in the arm during intravenous therapy nor in the 27 others not given anticoagulants before , during or after operations was there evidence of venous thrombosis in the leg or pulmonary embolism either by the 131-i fibrinogen scan nor by clinical course .
C0019134
heparin
C0034065
pulmonary embolism