DOI:
10.1055/s-00000094
Zeitschrift für Gastroenterologie
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References
Frieling T, Schindler P, Kuhlbusch-Zicklam R. et al
Krefelder CONTRA – study: conventional peroral esophagogastro-duodenoscopy (EGD) vs. transnasal EGD – a prospective and randomized study with independent evaluation of conscious sedation, endoscopic diameter, and access path.
Z Gastroenterol 2010; 48 (8): 818-824
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