Joy Melnikow, UC Davis (IMAGE) University of California - Davis Health Caption This is Joy Melnikow, professor and director of the Center for Healthcare Policy and Research at UC Davis. Credit University of California Regents, 2016 Usage Restrictions Please credit photo to University of California Regents, 2016 License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.