Anderson FA, Wheeler HB, Goldberg RJ, et al. A population-based perspective of the hospital incidence and case-fatality rates of deep vein thrombosis and pulmonary embolism. The Worcester DVT Study. Arch Intern Med1991;151:151.
2.
Barrit DW, Jordan SCAnticoagulant drugs in the treatment of pulmonary embolism. Lancet1960; 1: 1309.
3.
Brandjes Dpm , Heijbor H., Bu , ller HR, et al. Acenocoumarol and heparin compared with acenocoumarol. Alone in the treatment of proximal vein thrombosis. N Engl J Med1992;327: 1485.
4.
Rascke RA, Reilly BM, Guidry JR, et al. The weight-based heparin nomogram compared with a "standard care'' nomogram: a randomized controlled trial. Ann Intern Med1993; 119:874.
5.
Gallus A., Jackaman J., Tillett J., et al. Safety and efficacy of warfarin started early after submassive venous thrombosis or pulmonary embolism. Lancet1986;1:11293.
6.
Schulman S., Lockner D., Bergström K., et al. Intensive initial oral anticoagulation and shorter heparin treatment in deep venous thrombosis. Thromb Haemost1984;52:276.
7.
Mohiuddin SM , Hilleman DE, Destache CJ, et al. Efficacy and safety of early versus late initiation of warfarin during heparin therapy in acute thromboembolism . Am Heart J1992; 123:729.
8.
Hull R., Delmore T., Genton E., et al. Warfarin sodium versus low-dose heparin in the long-term treatment of venous thrombosis. N Engl J Med1979;302:855.
9.
Hull R., Delmore T., Carter C., et al, Adjusted subcutaneous heparin versus warfarin sodium in the long-term treatment of venous thrombosis. N Engl J Med1982;306:189.
10.
Lagerstedt CI, Fagher BO, Albrechtsson U., et al. Need for long-term anticoagulant treatment in symptomatic calf-vein thrombosis. Lancet1985;2:515,
11.
Hull R., Hirsh J., Jay R., et al. Different intensities of oral anticoagulant therapy in the treatment of proximo-vein thrambosis. N Engl J Med1982 :307:1676.
12.
Hull RD, Raskob GE, Rosenbloom D., et al. Heparin for 5 days as compared with 10 days in the initial treatment of proximal venous thrombosis. N Engl J Med1990;322:1260.
13.
Dalen JE, Hirsh J, eds. Third American College of Chest Physicians Consensus Conference on Antithrombotic Therapy. Chest1992; 102:303S-549S.
14.
Spencer F., Becker RC, Current approach to antithrombotic therapy: an abbreviated reference for practicing clinicians. J Thromb Thiombolvsis1996:3:307-25.
15.
Coon WW, Willis PW, Symons MJAssessment of anticoagulant treatment of venous thromblwmbolism. Ann Surg1969; 170:559.
16.
Coon WW, Willis PWRecurrence of venous thromboembolism. Surgery1973;73:823.
17.
O'Sullivan ETDuration of anticoagulant therapy in venous thromboembolism. Med J Aust1972;2:1104.
18.
Hull RDCarter CJ, Jay RM, et al. The diagnosis of acute, recurrent, deep-vein thrombosis: a diagnostic challenge. Circulation1983;67: 901.
19.
Holmgren K. , Anderson G., Fagrell B., et al. One month venous six months therapy with oral anticoagulants after symptomatic deep vein thrombosis . Acta Med Scand1985;218:279.
20.
Schulman S. , Lockner D., Juhlin-Dannfelt A.The duration of oral anticoagulation after deep vein thrombosis: a randomized study. Acta Med Scand1985;217:547.
21.
Prandoni P. , Lensing Awa, Cogo A., et al. The long-term clincial course of deep venous thrombosis. Ann Intern Med1996; 125:1-7.
22.
Schulman S. , Granquist S., Hatmstrom M., et al., and the Duration of Anticoagulation Trial Study Group.The duration of oral anticoagulant therapy after a second episode of venous thromboembolism. N Engl J Med1997:336:393-8.
23.
Petitti DB, Strom BL, Melmon KLDuration of warfarin anticoagulant therapy and the probabilities of recurrent thrombaembolism and hemorrhage. Am J Med1986 ;81:255.
24.
Research Committee of the British Thoracic Society. Optimum duration of anticoagulation for deep-vein thrombosis and pulmonary embolism . Lancet1992;340:873.
25.
Levine MN, Hirsh J., Gent M., et al. Optimal duration of oral anticoagulant therapy: a randomized trial comparing four weeks with three months of warfarin in patients with proximal deep vein thrombosis. Thromb Haemost1995;74:606.
26.
Schulman S. , Rheiden A-S., Lindmarker P., et al., A comparison of six weeks with six months of oral anticoagulant therapy after a first episode of venous thromboembolism . N Engl J Med1995 ;332: 1661.
27.
Carson JL, Kelley MA, Duff A., et al. The clinical course of pulmonary embolism. N Engl J Med1992;326:1240.
28.
Landefeld CS , Rosenblatt MWBleeding in outpatients treated with warfarin: relation to the prothrombin time and important remediable lesions . Am J Med1989;87:153.
29.
Landefeld CS , Goldman L.Major bleeding in outpatients treated with warfarin: incidence and prediction by factors known at the start of the outpatient therapy. Am J Med1989;87:144.
30.
Peyman MAThe significance of hemorrhage during treatment of patients with coumarin anticoagulants. Acta Med Scand1958; 162(Suppl):1.
31.
Launbjerg J. , Egeblad H., Heaf J., et al. Bleeding, complications to oral anticoagulant therapy: multivariate analysis of 1,010 treatment years in 551 outpatients . J Intern Med1991;229:351.
32.
Roos J., van Joost HE.The cause of bleeding during anticoagulant treatment. Acta Med Scand1965;178:129.
33.
Pollard JW, Hamilton MJ, Christensen NA et al. Problems associated with long-term anticoagulant therapy. Circulation1962;25: 311.
Levine MN, Raskob G., Hirsh J.Risk of hemorrhage associated with long-term anticoagulant therapy . Drugs1985:30:444.
40.
Gitter MJ, Jaeger TM, Petterson TM, et al. Bleeding and thromboembolism during anticoagulant therapy; a population-based study in Rochester, Minnesota. Mayo Clin Proc1995;70:725.
41.
Garabedian-Ruffalo SM, Gray DR, Sax MJ, et al, Retrospective evaluation of a pharmacist-managed anticoagulation clinic. Am J Hosp Pharm1985 ;42:304.
42.
Ellis RF, Stephens MA, Sharp GBEvaluation of a pharmacy-managed warfarin-monitoring service coordinate inpatient and outpatient therapy. Am J Hosp Pharm1992 ;49:387.
43.
Cortelazzo S. Finazzi G, Viero G., et al. Thrombotic and hemorrhagic complications in patients with mechanical heart valve prosthesis attending an anticoagulation clinic. Thromb Haemost1993; 69:316.
44.
Ginsberg JSManagement of venous thromboembolism, N Engl J Med1996;335:1816-28.