Your lower esophageal sphincter (LES) is a muscular ring that connects your esophagus with your stomach. It relaxes to let food pass through but otherwise stays closed to prevent stomach acid from ...
The Department of Homeland Security Office of Health Security, in coordination with the U.S. Department of Agriculture (USDA) ...
The U.S. Embassy for Venezuela also announced Friday that all American citizens detained in Venezuela have been released.
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