Article History
Accepted: 10 July 2019
First Online: 18 July 2019
Compliance with ethical standards
:
: EHL has stock or ownership and is an employee of Pfizer Inc. and is an employee of Pfizer Inc. JWS has stock or ownership and is an employee of Bristol-Myers Squibb. ASP has received consulting income from Bristol-Myers Squibb, Merck, Novartis, and Avexis. ASC has nothing to disclose.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The present study was a secondary data analysis and was determined by the UIC IRB approval not to involve human subjects.