Funding for this research was provided by:
National Institute on Aging (NIH/NIA K23 AG042961, P30-AG021684)
Text and Data Mining valid from 2018-09-21
Received: 5 October 2017
Accepted: 13 August 2018
First Online: 21 September 2018
Ethics approval and consent to participate
: This study was a secondary analysis with de-identified data, the University of California, Los Angeles Office of the Human Research Protection Program (OHRPP) reviewed the study and exempted it from further review of an ethics committee as it was deemed low risk. No actual human participants were recruited, no consent was necessary.
: The study was approved by the University of California, Los Angeles Office of the Human Research Protection Program (OHRPP) program.
: The authors declare that they have no competing interests.
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