"Indicator, Reagent, or Diagnostic Aid"^^ . "C18395"^^ . "Proliferation MarkerPTNCI" . "Proliferation_Marker"^^ . "Refers to specific proteins or other factors in actively growing and dividing cells, whose presence serves as an indicator for such cells. For instance, proliferating cell nuclear antigen (PCNA) or mitotic index.NCI" . "C1514486"^^ . "Proliferation Marker"^^ . . "Proliferation Marker"^^ . .