optimal specific staining of dendritic langerhans cells occurred after fixation of ethylenediaminetetraacetic acid-separated epidermal sheets in cacodylate buffered formaldehyde for 20 min and incubation , in the presence of magnesium and lead ions , with 9.36 x 10 ( -4 ) m adenosine diphosphate ( adp ) for 45 min .
C0023005
langerhans cells
C0014520
epidermal