title: Letter: Dinitrochlorobenzene sensitisation in congenital syphilis.
mesh_terms: D002713:Chlorine; D006801:Humans; D006968:Hypersensitivity, Delayed; D007111:Immunity, Cellular; D007075:Immunoglobulin M / Q000032:analysis*; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000097:blood / Q000276:immunology; D009578:Nitrobenzenes; D013590:Syphilis, Congenital / Q000097:blood / Q000276:immunology*
chemical_list: D007075:Immunoglobulin M; D009578:Nitrobenzenes; D002713:Chlorine