Acknowledgements
We thank Dr. Carpenter and colleagues for their interest in our study.
Disclosure statement
Research support for this trial and secondary analysis were provided by BTG International, Inc, in the form of grants to the Duke University School of Medicine and the Denver Health and Hospital Authority. In addition, the DHHA has research, consulting, and call center agreements with BTG. No authors have received personal or incentive compensation, and none have additional interests to disclose.