WASHINGTON - One in five adults has a little hole in the heart. Most will never know it. But the defect may play a role in certain strokes and severe migraines, leading thousands to get devices implanted to seal it shut. >>> Discuss This Story
WASHINGTON - One in five adults has a little hole in the heart. Most will never know it. But the defect may play a role in certain strokes and severe migraines, leading thousands to get devices implanted to seal it shut. >>> Discuss This Story
