Funding for this research was provided by:
Kaiser Permanente (n/a)
Article History
Received: 18 June 2019
Accepted: 24 September 2019
First Online: 25 November 2019
Ethics approval and consent to participate
: This study was approved by Kaiser Permanente Northern California’s Institutional Review Board. The IRB waived the requirement to obtain informed consent as allowed under {§46.116(d)}.
: Not applicable.
: The authors declare that they have no competing interests.