Mattos, M A Prevalence and distribution of calf vein thrombosis in patients with symptomatic deep venous thrombosis: a color-flow duplex study. [electronic resource] - Journal of vascular surgery Nov 1996 - 738-44 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0741-5214 Standard No.: 10.1016/s0741-5214(96)70006-x doi Subjects--Topical Terms: Acute DiseaseChi-Square DistributionEvaluation Studies as TopicHumansLeg--diagnostic imagingPrevalenceRetrospective StudiesThrombophlebitis--diagnostic imagingUltrasonography, Doppler, Color--instrumentationVeins--diagnostic imaging