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In medicine, a sac of tissue and blood vessels that surrounds an organ, joint, or tumor. A capsule is also a form for medicine that is taken by mouth. It usually has a shell made of gelatin with the medicine inside.


MetroWest Medical Center provides advanced medicine and personalized care, right here in your community.

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The Center for Heart & Vascular Services. At the forefront of heart and vascular disease for more than 25 years.

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