Article History
Received: 18 July 2020
Accepted: 9 September 2020
First Online: 25 September 2020
Compliance with Ethical Standrads
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: Authors AC and PP are employees of Pfizer, Inc. Author JL is an employee of Astra Zeneca. Author RG is a former employee of Pfizer, Inc. The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.