Text and Data Mining valid from 2019-03-22
Received: 17 September 2018
Revised: 5 February 2019
Accepted: 2 March 2019
First Online: 22 March 2019
Compliance with ethical standards
: CG-J, SEW, JDO, and ARS are full-time employees of the Regeneron Genetics Center from Regeneron Pharmaceuticals Inc. and receive stock options as part of compensation. The remaining authors declare that they have no conflict of interest.