Funding for this research was provided by:
VA HSR&D (PPO 10-075-1)
Text and Data Mining valid from 2018-12-01
Received: 9 March 2018
Accepted: 5 December 2018
First Online: 19 December 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of the Clement J. Zablocki Veterans Administration (VA) Hospital (PRO00019269). All participants provided written consent to participate in the study.
: The manuscript does not include details, images or videos of any individual person.
: The authors declare that they have no competing interests.
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