DOI:
10.1055/s-00000012
Endoscopy
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References
Cheung J, Goodman KJ, Bailey R. et al.
A randomized trial of topical anesthesia comparing lidocaine versus lidocaine plus xylometazoline for unsedated transnasal upper gastrointestinal endoscopy.
Can J Gastroenterol 2010;
24: 317-321
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