1. Department of Medicine; University of California at Los Angeles; Los Angeles California
2. Department of Medicine; Kaiser Permanente; Southern California; Panorama City California
3. Desert Oasis Healthcare; Palm Springs California
4. Department of Psychiatry and Biobehavioral Sciences; Health Services Research Center; University of California at Los Angeles; Los Angeles California
5. Integrated Substance Abuse Programs; University of California at Los Angeles; Los Angeles California
6. School of Social Work; University of Maryland; Baltimore Maryland
7. Department of Medicine; Cheng Ching Hospital; Taichung Taiwan