1. Controlled trial of platelet anti-aggregating agents and subcutaneous heparin in prevention of postoperative deep vein thrombosis in high risk patients;Dechavanne;Haemostasis,1975
2. Small subcutaneous doses of heparin in prevention of venous thrombosis;Gallus;New Engl. J. Med.,1973
3. Prevention of venous thromboembolism;Gallus;Semin. Thrombos. Hemostas.,1976
4. Failure of low-dose heparin to prevent deep-vein thrombosis after hip-replacement arthroplasty;Hampson;Lancet,1974
5. Prevention of fatal postoperative embolism by low doses of heparin;International Multicentre Trial (Kakkar V. V.);Lancet,1975