in mice , the number of langerhans cells reactive with anti-macrophage f4/80 monoclonal antibody steadily declined by approximately 85 % within 10 days after irradiation , consistent with previous studies , in which langerhans cells were identified in epidermal sheets by atpase activity or presence of birbeck granules .
C0023005
langerhans cells
C0230694
birbeck granules