Funding for this research was provided by:
National Institute of Nursing Research (R01NR13665, 1K99NR015903, 3R01NR013665-02S1)
Received: 7 March 2018
Accepted: 28 June 2018
First Online: 6 August 2018
Ethics approval and consent to participate
: The study protocol was approved by the institutional review boards of the UAB (Birmingham, Alabama), and the BVAMC (Birmingham, Alabama). All patients and FCGs provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.