Text and Data Mining valid from 2018-06-19
Received: 8 March 2018
Accepted: 24 May 2018
First Online: 19 June 2018
Ethics approval and consent to participate
: The study was approved from the Institutional Review Boards at each respective facility; informed consent was waived. Reference numbers: Swedish Medical Center: 987891; St. Anthony Hospital: 973145; Penrose Hospital: 975740; Medical City Plano: 103099.
: The authors declare that they have no competing interests.
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