1OUendorf DA, Vera-Lionch M, Oster G. Cost of venous thromboembo- lism following major orthopedic surgery in hospitalized patients. Am J Health Syst Pharm, 2002, 59 (18) : 1750 -1754.
2Ota M,Nakamura M,Yamada N,et al.Prognostic significance of early diagnosis in acute pulmonary thromboembolism with circulatory failure[J].Heart Vessels,2005,17(1):7-11.
3Oudega R,Hoes AW,Moons KG.The Wells rule does not adequately rule out deep venous thrombosis in primary care patients[J].Ann Intern Med,2005,143(2):100-107.
