DOI:
10.1055/s-00000012
Endoscopy
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References
Tsuboi M, Arai M, Matsumura T. et al.
Utility of unsedated transnasal endoscopy for pharyngeal observation during esophagogastroduodenoscopy. A prospective study to assess cardiopulmonary function.
Scand J Gastroenterol 2013;
48: 884-889
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