Nam Seok Ham

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BACKGROUND/AIMS To evaluate the diagnostic value of contrast (SonoVue(®)) enhancement ultrasonography (CEUS) and to compare this method with computed tomography (CT) and magnetic resonance imaging (MRI) in evaluating liver masses. METHODS CEUS (n=50), CT (n=47), and MRI (n=43) were performed on 50 liver masses in 48 patients for baseline mass(More)
BACKGROUND/AIMS Currently, the videofluoroscopic swallowing study (VFSS) is the standard tool for evaluating dysphagia. We evaluated whether the addition of endoscopist-directed flexible endoscopic evaluation of swallowing (FEES) to VFSS could improve the detection rates of penetration, aspiration, and pharyngeal residue, compared the diagnostic efficacy(More)
AIM To determine whether magnified observation of short-segment Barrett's esophagus (BE) is useful for the detection of specialized intestinal metaplasia (SIM). METHODS Thirty patients with suspected short-segment BE underwent magnifying endoscopy up to × 80. The magnified images were analyzed with respect to their pit-patterns, which were simultaneously(More)
  • N S Ham
  • Journal of pharmaceutical sciences
  • 1976
The conformations in aqueous solution were determined for the XCH2CH2N systems of some antihistamines (H1-receptor antagonists) and some adrenergic neuron blocking agents, including the antihypertensive drugs guanethidine and guanoclor. The rotameric species thought to be the pharmacologically active one is often not the only rotamer present in solution.
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