Funding for this research was provided by:
National Center for Advancing Translational Sciences (1U18TR000547)
U.S. Food and Drug Administration (U01FD004230)
Deutsche Forschungsgemeinschaft (U01FD004230)
International Foundation for Ethical Research
Received: 15 July 2015
Accepted: 9 November 2015
First Online: 8 December 2015
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This article does not contain any clinical studies with human participants or animals performed by any of the authors.