About the Authors

Jan Hintzpeter

Affiliation Institute of Toxicology and Pharmacology for Natural Scientists, University Medical School Schleswig-Holstein, Campus Kiel, Germany

Claudia Stapelfeld

Affiliation Institute of Toxicology and Pharmacology for Natural Scientists, University Medical School Schleswig-Holstein, Campus Kiel, Germany

Christine Loerz

Affiliation Institute of Toxicology and Pharmacology for Natural Scientists, University Medical School Schleswig-Holstein, Campus Kiel, Germany

Hans-Joerg Martin

Affiliation Institute of Toxicology and Pharmacology for Natural Scientists, University Medical School Schleswig-Holstein, Campus Kiel, Germany

Edmund Maser

maser@toxi.uni-kiel.de

Affiliation Institute of Toxicology and Pharmacology for Natural Scientists, University Medical School Schleswig-Holstein, Campus Kiel, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JH CS CL HJM. Performed the experiments: CS CL. Analyzed the data: JH CS CL HJM. Contributed reagents/materials/analysis tools: EM. Wrote the paper: JH HJM. Added valuable points of discussion: JH CL CS HJM EM.