[1]
A. Lamberti, G. Filippou, A. Adinolfi, M. Fimiani, and P. Rubegni, “Infantile perianal pyramidal protrusion: a case report with dermoscopy and ultrasound findings”, Dermatol Pract Concept, pp. 125–128, Apr. 2015, doi: 10.5826/dpc.0502a25.