mucosa
The membrane covering canals and cavities that open on the outside of the body, such as the gastrointestinal tract and the respiratory tract. Also called mucous membrane.
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Pain Relievers: Understanding Your OTC Options
Over-the-counter (OTC) pain relievers are medicines you can buy at a store, without a prescription from your doctor. They can decrease or stop pain. They can also lower fevers. But not all pain rel...
