About the Authors

Marieke J. van der Werf-Eldering

m.j.van.der.werf@psy.umcg.nl

Affiliation Department of Psychiatry, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands

Huibert Burger

Affiliations Department of Psychiatry, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands, Department of Epidemiology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands

Esther A. E. Holthausen

Affiliation Department of Psychiatry, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands

André Aleman

Affiliation BCN Neuroimaging Centre, University of Groningen, Groningen, The Netherlands

Willem A. Nolen

Affiliation Department of Psychiatry, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands

Competing Interests

M.J. van der Werf-Eldering received an unrestricted Young Investigator's award from AstraZeneca, The Netherlands. W.A. Nolen has received grants from The Netherlands Organisation for Health Research and Development, the European Union, the Stanley Medical Research Institute, Astra Zeneca, Eli Lilly, GlaxoSmithKline and Wyeth; has received honoraria/speaker's fees from Astra Zeneca, Eli Lilly, Pfizer, Servier and Wyeth; and has served in advisory boards for Astra Zeneca, Cyberonics, Pfizer and Servier. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials. All other authors deny any conflicts of interest or commercial associations in connection with the submitted manuscript.

Author Contributions

Conceived and designed the experiments: MJvdWE EAEH WAN. Performed the experiments: MJvdWE. Analyzed the data: MJvdWE HB AA. Wrote the paper: MJvdWE HB EAEH AA WAN.