ABBOTT PARK, Ill., Nov. 6, 2017 /PRNewswire/ — Abbott (NYSE: ABT) today announced that Japan’s Ministry of Health, Labour and Welfare (MHLW) has approved the company’s MitraClip device for treatment of people with mitral regurgitation (MR), a serious, progressive heart disease in which the mitral valve does not close properly, allowing blood to flow backward […]