. 2020 Dec 14;61(1):157–169. doi: 10.1111/head.14026
© 2020 The Authors. Headache: The Journal of Head and Face Pain published by Wiley Periodicals LLC on behalf of American Headache Society
This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
FIGURE 1.
Flowchart of patient recruitment and follow‐up