title: A study of delayed hypersensitivity in patients with leprosy.
mesh_terms: D006241:Haptens; D006801:Humans; D006968:Hypersensitivity, Delayed; D007111:Immunity, Cellular; D007918:Leprosy / Q000276:immunology*; D014374:Tuberculin Test
chemical_list: D006241:Haptens