Geographic differences in substance use and addiction severity among patients receiving Methadone Maintenance Treatment in China

Ching-Yi Peng, MS1, Yen-Jung Chang, MS1, Julie Hsieh, MPH2 and Yih-ing Hser, PhD3
(1)University of California, Los Angeles, Los Angeles, CA, (2)UCLA School of Public Health, Los Angeles, CA, (3)UCLA Integrated Substance Abuse Programs (ISAP), Los Angeles, CA