1. Institute for Interdisciplinary Salivary Bioscience Research, University of California at Irvine, Irvine, CA 92697, USA
2. T. Denny Sanford School of Social & Family Dynamics, Arizona State University, Tempe, AZ 85287, USA
3. Research & Technology Center, Salimetrics, Carlsbad, CA 92008, USA
4. Department of Psychology, George Mason University, Fairfax, VA 22030, USA
5. Department of Population, Family, & Reproductive Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21205, USA
6. Department of Acute & Chronic Care, Johns Hopkins University School of Nursing, Baltimore, MD 21205, USA
7. Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
8. Salivary Bioscience Laboratory & Department of Psychology, University of Nebraska, Lincoln, NE 68588, USA