Text and Data Mining valid from 2019-01-24
Received: 10 January 2019
Revised: 14 January 2019
Accepted: 18 January 2019
First Online: 24 January 2019
Compliance with ethical standards
: Joseph C. Cappelleri is an employee and stockholder of Pfizer Inc. Jason Brinkley is an employee of Abt Associates Inc.
: This article does not contain any studies with human participants or animals performed by any of the authors.