the authors made an immunocytochemical examination of the germinal centers ( gcs ) of ( 1 ) lymph follicles in physiological lymph nodes and ( 2 ) extra-nodal tissues of divergent diseases including thyroid disorders , rheumatoid arthritis , warthin 's tumor and kimura 's disease ( eosinophilic lymphfolliculoid granuloma ) .
C0282491
germinal centers
C0024204
lymph