1. Department of Psychology, Pennsylvania State University.
2. Department of Psychology, Klagenfurt University, Austria.
3. Department of Psychiatry, University of Pittsburgh School of Medicine.
4. Institute for Interdisciplinary Salivary Bioscience Research, University of California at Irvine.
5. Johns Hopkins University School of Medicine; Johns Hopkins University Bloomberg School of Public Health; Johns Hopkins University School of Nursing.
6. Department of Psychology and Salivary Bioscience Laboratory, University of Nebraska