I don’t know how to upload a file so I’ll have to redirect you to here for now:
facebook.com/groups/vmpro/1432489886998128/
If youw ant to view it on the BMJ site, you can sign up to a free 14 day trial. It’s here: bmj.com/content/348/bmj.g1416
Thank you for an interesting paper.
“Each year about 2.5% of people with episodic migraine transform to chronic migraine”. Ugh! I hope not.