Correction: Developing process measures in value-based healthcare: the case of aortic valve disease
===================================================================================================


Akmaz B, Zipfel N, Bal RA, *et al.* Developing process measures in value-based healthcare: the case of aortic valve disease. *BMJ Open Quality* 2019;8:e000716. doi: 10.1136/bmjoq-2019-000716.

The license type of the paper has changed from CC-BY-NC to CC BY.

This is an open access article distributed in accordance with the Creative Commons Attribution 4.0 Unported (CC BY 4.0) license, which permits others to copy, redistribute, remix, transform and build upon this work for any purpose, provided the original work is properly cited, a link to the licence is given, and indication of whether changes were made. See: [https://creativecommons.org/licenses/by/4.0/](https://creativecommons.org/licenses/by/4.0/).