Frank, E
Nimgaonkar, V L
Phillips, M L
Kupfer, D J
Article History
Received: 21 January 2014
Revised: 13 May 2014
Accepted: 6 June 2014
First Online: 22 July 2014
Competing interests
: Drs Frank and Kupfer are consultants to the American Psychiatric Association and each has an equity interest in Psychiatric Assessments. Dr Frank receives royalties from Guilford Press and the American Psychological Association and has received honoraria from Servier and Lundbeck. The other authors have no conflict of interest to declare.