1. Center for the Study of Human Health, Emory College of Arts and Sciences, Atlanta, GA, USA
2. The Bent Creek Institute, Asheville, NC, USA
3. Emory Herbarium, Emory College of Arts and Sciences, Atlanta, GA, USA
4. Herbal Anthropology Project, San Francisco, CA, USA
5. Department of Dermatology, Emory University School of Medicine, Atlanta, GA, USA
6. Department of Environmental Sciences, Emory College of Arts and Sciences, Atlanta, GA, USA