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    Light as a feather. Small as a Quarter.

    WATCHMAN is a one-time implant that typically takes less than an hour. It works by closing the source of more than 90% of stroke-causing blood clots that come from the heart in people with non-valvular AF.1

    Light as a feather_ Small as a Quarter.
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    1. Blackshear J. and Odell J., Annals of Thoracic Surgery. 1996;61:755-759