title: Observer disagreement in the classification and histology of Hodgkin's disease.
mesh_terms: D001706:Biopsy; D006644:Histiocytes; D006689:Hodgkin Disease / Q000145:classification* / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008214:Lymphocytes; D010950:Plasma Cells