E-Mail BOSTON - For patients who have experienced certain common types of stroke, a small chip inserted under the skin may help physicians predict their likelihood of experiencing a second stroke, and therefore their likelihood of benefiting from preventive therapy. The findings come from a recent clinical trial published in the Journal of the American Medical Association and led by investigators at Massachusetts General Hospital (MGH) and Northwestern University Feinberg School of Medicine. Each year, approximately 800,000 strokes occur in the United States, and as many as one-fourth occu...