1. Health Equity Research Laboratory, Cambridge Health Alliance, Department of Psychiatry, Harvard Medical School, 1035 Cambridge Street, Suite 26, Cambridge, MA 02141, USA
2. Wired Informatics, 265 Franklin Street, Suite 1702, Boston, MA 02110, USA
3. Hospital Universitario Fundación Jiménez Díaz, Avda. Reyes Católicos 2, 28040 Madrid, Spain
4. Autonomous University of Madrid, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain