Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University - Stanley Center for Psychiatric Research, Baylor University - Department of Molecular and Human Genetics, Harvard University - Society of Fellows, Massachusetts Institute of Technology and Harvard University - Stanley Center for Psychiatric Research, Massachusetts Institute of Technology and Harvard University - Stanley Center for Psychiatric Research, Massachusetts Institute of Technology and Harvard University - Stanley Center for Psychiatric Research, The University of Osaka - Department of Statistical Genetics, Independent, Massachusetts Institute of Technology and Harvard University - Stanley Center for Psychiatric Research, University of Southern California - Department of Economics, Baylor University - Department of Molecular and Human Genetics and Massachusetts Institute of Technology and Harvard University - Stanley Center for Psychiatric Research