Yi, L. G., R. Guerra, S. B. Wu, and R. H. Flowers. “Facial Papules in Birt-Hogg-Dubé Syndrome: A Growing Spectrum of Pathologic Findings”. SKIN The Journal of Cutaneous Medicine, vol. 4, no. 5, Aug. 2020, pp. 468-71, doi:10.25251/skin.4.5.16.