title: Delayed type hypersensitivity reaction to cutaneous antigen in keloid.
mesh_terms: D000152:Acne Vulgaris / Q000276:immunology; D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000276:immunology*; D007519:Isoantigens / Q000276:immunology*; D007627:Keloid / Q000276:immunology*; D008297:Male; D012867:Skin / Q000276:immunology
chemical_list: D007519:Isoantigens