Migraines vs. Chronic Migraines. Retrieved 23 April 2019 from https://www.webmd.com/migraines-headaches/chronic-migraines-explained#1
What Is a Chronic Migraine? Retrieved 23 April 2019 from https://www.healthline.com/health/migraine/chronic#when-to-see-your-doctor
The stigma of chronic migraine. Retrieved 23 April 2019 from https://www.health.harvard.edu/blog/the-stigma-of-chronic-migraine-201301235828
Migraine. Retrieved 28 February 2020 from https://www.mayoclinic.org/diseases-conditions/migraine-headache/diagnosis-treatment/drc-20360207
Migraine treatment. Retrieved 28 February 2020 from https://www.healthline.com/health/migraine-doctors-for-migraine-headaches#treatment
Facts and figures, Key facts and figures about migraine. Retrieved 28 February 2020 from https://www.migrainetrust.org/about-migraine/migraine-what-is-it/facts-figures/