[1] Benigno M. A Large Cross-Sectional Survey Study of the Prevalence of Alopecia Areata inthe United States, Clinical, Cosmetic and Investigational Dermatology 2020(米国における円形脱毛症の有病率に関する大規模横断調査研究)。
[2] Lee HH et al. J Am Acad Dermatol. 2020 Mar;82(3):675-682.