Lattimer CR, Kalodiki E, Azzam M, Geroulakos G. An international survey on the interpretation of pigmentation using the C class of the Clinical, Etiological, Anatomical, Pathophysiological Classification. Veins and Lymphatics [Internet]. 2013 Aug. 2 [cited 2024 May 4];2(1):e15. Available from: https://www.pagepressjournals.org/vl/article/view/vl.2013.e15