DAS, K.; DAS, N.; RATHORE, V.; KUNDU, S.; CHOUDHURY, S.; GHARAMI, R.; DATTA, P. Keratoacanthoma centrifugum marginatum: unresponsive to oral retinoid and successfully treated with wide local excision. Dermatology Reports, v. 2, n. 1, p. e1, 18 jan. 2010.