They need to have a better way to find them in Illinois. My papers they gave me said to go to Bettendorf, Dr said Illinois. She gave me the wrong address, I called office. They say GPS WON'T work for here. They give me directions I have to try to read and drive with one good eye. Really?? Can't they do better than this?? Keep Iowa people in Iowa. Don't make us jump through hoops and drive all over trying to find you.