1. Department of Anthropology UCLA Los Angeles California USA
2. Department of Psychiatry & Biobehavioral Sciences UCLA Los Angeles California USA
3. The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine David Geffen School of Medicine at UCLA Los Angeles California USA
4. UCLA Microbiome Center David Geffen School of Medicine at UCLA Los Angeles California USA
5. Division of Gastroenterology, Hepatology and Parenteral Nutrition VA Greater Los Angeles Healthcare System Los Angeles California USA
6. Department of Psychiatry and Human Behavior UC Irvine Irvine California USA
7. Department of Psychology Chapman University Orange California USA