Funding for this research was provided by:
Dorothy M. Davis Heart and Lung Research Institute (R01 HL118045)
Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01 HD080749)
National Institute on Aging (R01 AG055393)
National Institute on Drug Abuse (R21 DA034457)
National Institute of Mental Health (R01 MH62699)
Text and Data Mining valid from 2019-01-01
Received: 5 September 2018
Accepted: 11 December 2018
First Online: 2 January 2019
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: Standards of ethical responsibility have been followed. None of the findings in this paper have been published elsewhere. All authors read and approved the final manuscript. The order of authorship reflects the relative level of contribution make by each of the authors. 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. The Institutional Review Board of the University of Georgia approval the study and its informed consent procedures.
: Informed consent was obtained from all individual participants included in the study.