The BP Control Lab, led by the University of California at San Francisco, involves three studies. The first describes blood pressure control in the United States using electronic health records from health systems across the country. The second compares blood pressure control between clinics that receive educational materials about blood pressure control guidelines with or without extra support from a site facilitator, trained by the American Medical Association, to improve their clinic processes and monitor how well clinics are controlling blood pressure. The third compares blood pressure control between patients who receive a home blood pressure monitor with and without a smartphone app.