Homan, P
Neumeister, A
Nugent, A C
Charney, D S
Drevets, W C
Hasler, G
Article History
Received: 22 September 2014
Revised: 12 January 2015
Accepted: 20 January 2015
First Online: 17 March 2015
Competing interests
: WCD is currently an employee of Janssen Pharmaceuticals of Johnson & Johnson. The remaining authors declare no conflict of interest.