title: Lymphocyte reactivity against phytohemagglutinin in rheumatoid arthritis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D005260:Female; D006801:Humans; D007111:Immunity, Cellular; D008213:Lymphocyte Activation; D008297:Male; D008875:Middle Aged; D008934:Mitogens; D010835:Phytohemagglutinins / Q000494:pharmacology*
chemical_list: D008934:Mitogens; D010835:Phytohemagglutinins