Schmidt, Emmett V. http://orcid.org/0000-0003-4687-9367
Article History
Received: 13 September 2018
Accepted: 18 September 2018
First Online: 29 October 2018
Compliance with ethical standards
:
: The author is employed by Merck, Sharpe & Dohme Corp., a subsidiary of Merck & Co. Inc., Kenilworth, NJ, USA and owns stock in Merck & Co. Inc., Kenilworth, NJ, USA.