PICCOLO, V.; RUSSO, T.; ARGENZIANO, G. Ring Pressure Sign: When Long Lasting Dermoscopic Observation Leads the Decision. Dermatology Practical & Conceptual, [S. l.], p. e2021125, 2021. DOI: 10.5826/dpc.1104a125. Disponível em: https://dpcj.org/index.php/dpc/article/view/dermatol-pract-concept-articleid-dp1104a125. Acesso em: 9 dec. 2021.