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A physician assistant (PA) is a health care professional who works with doctors and gives medical treatment. You can find physician assistants in virtually all primary care and specialty medical ...

Mark Gurarie is a freelance writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of ...

The A/G ratio is a blood test that measures the amount of albumin and globulin proteins in your blood. A high A/G ratio may indicate kidney disease, an antibody deficiency, or severe dehydration. A ...