Northeastern Minnesota has some of the highest rates of high blood pressure in the state, and the state Health Department is working with four clinics to reduce the problem. Doctor Jane Korn says the goal is to better identify patients who need more aggressive treatment. They have received a 140-thousand-dollar grant to work with those clinics to better treat cases of high blood pressure. High blood pressure can cause heart attack or stroke. The participating clinics are in Duluth, Aitkin and Deer River.