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Figure 1 Anatomy of the closing and some opening muscles of the upper esophageal sphincter (UES). GI Motility online (May 2006) | doi:10.1038/gimo12. - PowerPoint PPT Presentation
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GI Motility online (May 2006) | doi:10.1038/gimo12
Figure 1 Anatomy of the closing and some opening muscles of the upper esophageal sphincter (UES).