They may have a weak or damaged heart, high blood pressure or other problems of the blood system.

VOA: special.2010.07.27

Diseases like cirrhosis of the liver,cancer, heart and blood system diseases are the others.

VOA: special.2011.02.16

Researchers at the University of Toronto in Canada are studying a mobile phone system that may help people with diabetes control their blood pressure.

VOA: special.2010.12.06

The system effectively controlled participants' blood sugar for 27 hours, during which time they ate three high-carbohydrate meals and slept through the night at a hospital.

VOA: standard.2010.04.15

In the public health care system, for example, only two hospitals are equipped with dialysis machines, which remove impurities from the blood when the kidneys can not do it.

VOA: standard.2010.05.30

Health care professionals in Kenya are also pushing for what they call a structured donor system that involves regular education campaigns,blood drives, and mobile donor clinics to reach office workers and people living in rural areas.

VOA: standard.2010.06.04