Kirchengast, Sylvia, and Astrid Molnar. “The Impact of Lifestyle Factors and Chronic Stress on Frequency and Intensity of Migraine and Tension-Type Headache Among Austrian Women: Lifestyle Impacts Duration and Intensity of Headaches”. Human Biology and Public Health 1 (September 14, 2022). Accessed December 9, 2022. https://human-biology-and-public-health.org/index.php/hbph/article/view/33.