About the Authors

Susanne Zach

Affiliation Boehringer Ingelheim Pharma GmbH & Co KG, CNS Research, Biberach an der Riss, Germany

Sandra Felk

Affiliation Boehringer Ingelheim Pharma GmbH & Co KG, CNS Research, Biberach an der Riss, Germany

Frank Gillardon

Frank.Gillardon@boehringer-ingelheim.com

Affiliation Boehringer Ingelheim Pharma GmbH & Co KG, CNS Research, Biberach an der Riss, Germany

Competing Interests

The authors are employees of Boehringer Ingelheim Pharma GmbH & Co KG. Funding does not alter adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: FG. Performed the experiments: SZ SF. Analyzed the data: SZ SF FG. Wrote the paper: FG.