"Funding: The EDSP study is funded by grants of the German Ministry of Research, Education and Technology (01EB9405/6 and 01EB9901/6) and the Deutsche Forschungsgemeinschaft (DFG), and this paper is part of NIH grant RO1DA016977-01, PL.
Competing interests: All authors have completed the Unified Competing Interest form at www.icmje.org/coi_disclosure.pdf (available on request from the corresponding author) and declare: no support from any organisation for the submitted work; no financial relationships with any organisation that might have an interest in the submitted work in the previous three years; and no other relationships or activities that could appear to have influenced the submitted work."
"Funding: The EDSP study is funded by grants of the German Ministry of Research, Education and Technology (01EB9405/6 and 01EB9901/6) and the Deutsche Forschungsgemeinschaft (DFG), and this paper is part of NIH grant RO1DA016977-01, PL. Competing interests: All authors have completed the Unified Competing Interest form at www.icmje.org/coi_disclosure.pdf (available on request from the corresponding author) and declare: no support from any organisation for the submitted work; no financial relationships with any organisation that might have an interest in the submitted work in the previous three years; and no other relationships or activities that could appear to have influenced the submitted work."