1. Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
2. Department of Psychiatry and Neuroscience, School of Medicine, University of California Riverside, Riverside, CA, USA
3. Wolfson Research Centre, Regional Affective Disorders Service, Campus for Ageing and Vitality, Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, Newcastle, United Kingdom