An immunological mechanism for the reduced incidence of malignant melanoma in patients with acne?
D000152:Acne Vulgaris / Q000276:immunology*; D006801:Humans; D008545:Melanoma / Q000276:immunology*; D011425:Propionibacterium acnes / Q000276:immunology; D012878:Skin Neoplasms / Q000276:immunology*