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In medicine, a specific event that starts a process or that causes a particular outcome. For example, chemotherapy, painful treatments, or the smells, sounds, and sights that go with them may trigger anxiety and fear in a patient who has cancer. In allergies, exposure to mold, pollen or dust may trigger sneezing, watery eyes, and coughing.


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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