Funding for this research was provided by:
Text and Data Mining valid from 2019-07-16
First Online: 16 July 2019
Compliance with Ethical Standards
: All procedures performed involving human participants were in accordance with the ethical standards of the national research committee (Copernicus Group IRB) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
: This study was funded by eResearch Technology (ERT).
: Authors KMD, ND, LK, STG, and SMD are employees of eResearch Technology (ERT), which funded this research, and authors CE and BW are employees of Endpoint Outcomes, which performs services for ERT.