1. Plasma heparin levels after administration of calcium and sodium salts of heparin;Thomas, D.P.; Sagar, S.; Stamatakis, J.D.; Maffei, F.H.A.; Erdi, A.; Kakkar, W.;Thromb Res,1976
2. Clinical and haemostatic parameters related to thromboembolism and low dose heparin prophylaxis in major surgery;Lahnborg, G.; Bergstrom, K.;Acta ChirScand,1975
3. The management of heparin therapy. Controlled prospective trial;Salzman, E.W.; Deykin, D.; Shapiro, R.M.;NEnglJMed,1975
4. Randomised prospective trial of continuous vs intermittent heparin therapy;Glazier, R.L.; Crowell, E.B.;JAMA,1976
5. An objective study of altemative methods of heparin administration;Bentdey, P.G.; Kakkar, W.; Scully, M.F.;Thromb Res,1980