The New England journal of medicine
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Historical Article
Due process in investigations of research misconduct.
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Randomized Controlled Trial Clinical Trial
Evaluation of D-dimer in the diagnosis of suspected deep-vein thrombosis.
Several diagnostic strategies using ultrasound imaging, measurement of D-dimer, and assessment of clinical probability of disease have proved safe in patients with suspected deep-vein thrombosis, but they have not been compared in randomized trials. ⋯ Deep-vein thrombosis can be ruled out in a patient who is judged clinically unlikely to have deep-vein thrombosis and who has a negative D-dimer test. Ultrasound testing can be safely omitted in such patients.