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Showing articles 0 to 1 of 1 Filter Applied: doppler,transcranial,false negative (Click to remove) Detection of Patent Foramen Ovale. Transesophageal Echocardiography and Transcranial Doppler Sonography With Ultrasound Contrast Media are "Supplementary, Not Competing, Diagnostic Methods" Med Klin 94:367-370, Heckmann,J.G.,et al, 1999 Showing articles 0 to 1 of 1