Funding for this research was provided by:
National Center for Advancing Translational Sciences (1UL1TR001079)
National Institute of Mental Health (R25MH083620, K01MH111374)
National Cancer Institute (K01CA184288, P30CA006973, P30CA006973, R01CA106851, 1U54CA155850)
National Institute of Allergy and Infectious Diseases (P30AI094189)
National Institute on Aging (K01AG04176)
National Institute on Drug Abuse (T32DA031099)
Received: 20 November 2017
Accepted: 9 August 2018
First Online: 18 August 2018
Compliance with ethical standards
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.