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											 Original Article											 
											Comparison of the 13C-urea breath test and the endoscopic phenol red mucosal pH test in the quantification of Helicobacter pylori infection loading
											
																								
												Young-Seok Cho, Hiun-Suk Chae, Se Na Jang, Jin-Soo Kim, Hye Suk Son, Hyung-Keun Kim, Byung-Wook Kim, Sok-Won Han, Kyu-Yong Choi, Hae Kyung Lee, Eun Deok Chang 
												
												Korean J Intern Med. 2008;23(3):134-139.   Published online September 20, 2008												 
																										
												
												
																								
													Background/AimsThe 13C-urea breath test (UBT) is a semiquantitative test for measuring Helicobacter pylori infection loading. H. pylori produces ammonia, which elevates the pH of the gastric mucosa and is detectable via endoscopy us..												  
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