Text and Data Mining valid from 2019-03-14
First Online: 14 March 2019
Compliance with Ethical Standards
: The authors did not receive any grant from funding agencies in the public, commercial, or not-for-profit sectors for the submitted work.
: YJ was a research assistant at the University of Southern California when the submitted work was conducted and is an employee of Amgen Inc. WN was a research fellow at the University of Southern California when the submitted work was conducted and is an employee of Medtronic Inc.
: All data generated or analyzed during this study are included in this manuscript (and its online supplemental files). The Excel simulation model used for the analysis and the program code in the model were provided for peer review.