*Center for Occupational and Environmental Health, University of California, Irvine, CA; and
†Department of Neurology, University of California, Irvine, CA, and Department of Epidemiology, School of Public Health, University of California, Los Angeles, CA
‡School of Health Sciences, University of Occupational and Environmental Health, Fukuoka, Japan; and
§Labor Occupational Safety and Health Program, University of California, Los Angeles, CA.
Address correspondence and reprint requests to Haiou Yang, PhD, Center for Occupational and Environmental Health, University of California, 100 Theory, Ste 100, Irvine, CA 92617; E-mail: [email protected]
Acknowledgment date: June 16, 2014. Revision date: October 4, 2014. Acceptance date: October 30, 2014.
The manuscript submitted does not contain information about medical device(s)/drug(s).
No funds were received in support of this work.
Relevant financial activities outside the submitted work: board membership, employment, royalties, stocks, travel/accommodations/meeting expenses.