Funding for this research was provided by:
National Institute of General Medical Sciences (U01GM110744)
Directorate for Biological Sciences (1156707)
National Institute of General Medical Sciences (U54GM111274)
Article History
Received: 3 March 2017
Accepted: 23 August 2017
First Online: 6 September 2017
Ethics approval and consent to participate
: This study does not involve human participants, human data or human tissue.
: This study does not contain any individual person’s data in any form.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.