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Publikováno v:
American journal of surgery. 173(6)
Background It has been taught that most deep venous thromboses (DVT) begin in the deep veins of the calf and propagate proximally. The duplex ultrasound scan, with its noninvasive characteristics and accuracy, has brought this premise into question.
Publikováno v:
American journal of surgery. 170(2)
Background : The introduction of managed care, with its emphasis on cost containment, makes it of paramount importance that all tests ordered be specific, selective, and appropriate. Method : The data concerning patients who underwent a duplex scan t