title: [Studies on natural antibodies to the 2,4-dinitrophenyl group (DNP) in human sera--1. Variation in reactivity with age].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000906:Antibodies / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D004140:Dinitrophenols / Q000276:immunology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007841:Latex Fixation Tests; D008875:Middle Aged
chemical_list: D000906:Antibodies; D004140:Dinitrophenols