1. Department of Population Health & Disease Prevention, University of California, Irvine , Irvine, CA , USA
2. Chao Family Comprehensive Cancer Center, University of California, Irvine , Irvine, CA , USA
3. Institute for Interdisciplinary Salivary Bioscience Research, University of California, Irvine , Irvine, CA , USA
4. Department of Psychology, Soochow University , Taipei , Taiwan
5. Department of Psychology, Ohio State University , Columbus, OH , USA
6. Department of Urology, University of California, Irvine , Irvine, CA , USA
7. Department of Medicine, Memorial Sloan Kettering Cancer Center , New York, NY , USA
8. Department of Medicine, Weill Cornell Medical College , New York, NY , USA
9. Department of Psychiatry and Behavioral Science, Memorial Sloan Kettering Cancer Center , New York, NY , USA