Text and Data Mining valid from 2018-05-02
Received: 27 June 2017
Accepted: 27 March 2018
First Online: 2 May 2018
Ethics approval and consent to participate
: The Institutional Review Board at the Johns Hopkins Bloomberg School of Public Health determined that the human subject research activity in this study meets the criteria for exemption under 45 CFR 46.101(b), Category (4) and thus waived the need for approval for this study (IRB No: 00007933). No consent to participate in this study from patients was needed.
: No consent for publication from patients was needed.
: HJK, KD, PS, SS, HK, DB, and CTM declare that they have no competing interests. JRC receives salary support from the nonprofit Patient Centered Outcomes Research Institute (PCORI) for unrelated work.
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