Funding for this research was provided by:
National Institute of Allergy and Infectious Diseases (T32A1055434)
National Institute of Neurological Disorders and Stroke (R01NS065714)
National Cancer Institute (P30CA042014)
National Institutes of Health (1S10RR026802)
Received: 27 March 2019
Accepted: 10 July 2019
First Online: 20 July 2019
Consent for publication
: Not applicable.
: The authors declare that they have no competing interests.