1. Department of Psychiatry Oregon Health & Science University Portland Oregon USA
2. Division of Mental Health VA Portland Health Care System Portland Oregon USA
3. Oregon Institute of Occupational Health Sciences Portland Oregon USA
4. Sleep and Circadian Research Laboratory, Department of Psychiatry University of Michigan Ann Arbor Michigan USA
5. Prechter Bipolar Research Program at the Eisenberg Family Depression Center & Department of Psychiatry University of Michigan Ann Arbor Michigan USA