Acknowledgments
This study was sponsored by F. Hoffmann-La Roche Ltd. Medical writing support, under the direction of the authors, was provided by Lucy Carrier and Elizabeth Johnson, Gardiner Caldwell Communications (Macclesfield, UK). Support for third-party writing assistance was provided by F. Hoffmann-La Roche Ltd.
Potential conflict of interest
Disclosure forms provided by the authors are available with the full text of this article online at https://doi.org/10.1080/10428194.2017.1376740.