Kaiser Permanente Washington Health Research Institute (KPWHRI) does practical research to improve the health and health care of Kaiser Permanente members and the public. We’re sharing digital stories about our patient-centered research on what really works for health--and what doesn’t. A nonproprietary, public-interest research center since 1983, the Institute was formerly known as Group Health Research Institute. Government agencies and private foundations provide our main funding. For more information, go to: www.kpwashingtonresearch.