Kim Y, Helm KF, Billingsley EM, Lam C. Spontaneous Regression of a Keratoacanthoma Centrifugum Marginatum. Dermatol Pract Concept [Internet]. 2019 Apr. 30 [cited 2026 May 15];9(2):157-9. Available from: https://www.dpcj.org/index.php/dpc/article/view/dermatol-pract-concept-articleid-dp0902a16