Prevention of venous thromboembolism in North America: results of a survey among general surgeons.
Caprini JA, Arcelus JI, Hoffman K, Mattern T, Laubach M, Size GP, Traverso CI, Coats R. Prevention of venous thromboembolism in North America: results of a survey among general surgeons. J Vasc Surg. 1994 Nov; 20(5):751-8.