Jiwon Oh, UC Davis (IMAGE) University of California - Davis Health Caption Jiwon Oh, first author of the study, is a postdoctoral scholar in the UC Davis Department of Public Health Sciences, Division of Environmental and Occupational Health. Credit UC Davis Health Usage Restrictions Courtesy photo. License Original 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.