Text and Data Mining valid from 2018-06-19
Received: 20 January 2017
Accepted: 4 June 2018
First Online: 19 June 2018
Ethics approval and consent to participate
: The study was approved by the MultiCare Health System Institutional Review Board. Requirement for consent was waived for this retrospective chart review. We did not expect to be able to contact patients to get consent.
: The authors declare that they have no competing interests.
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