Funding for this research was provided by:
Received: 31 October 2019
Accepted: 28 January 2020
First Online: 13 February 2020
Ethics approval and consent to participate
: This retrospective database analysis did not involve the collection, use, or transmittal of individual identifiable data. As such, institutional review board approval to conduct this study was not required and considered exempt according to the Federal Policy for the Protection of Human Subjects (<i>Common Rule</i>) 45CFR46.101(b)(4): Existing Data and Specimens—No Identifiers. Both the data set itself and the security of the offices where the data are housed meet the requirements of the Health Insurance Portability and Accountability Act of 1996.
: All authors consent to this publication. No material is owned by third parties; hence, no additional permissions are required.
: N Epperla, H Yuce, and L Andritsos have no conflicts to disclose.M Pavilack, T Olufade, and S Kabadi are employees of AstraZeneca, the study sponsor.R Bashyal and J Li are employees of STATinMED Research, a paid consultant to the study sponsor.