referenced to 10 ( 6 ) cells , for example , the surface area of the inner nuclear membrane of endothelial cells had a s.d . equal to 2.9 % of the mean , whereas the surface density of the same membrane compartment-referenced to a cm3 of cells-had a s.d . at 19.1 % of the mean .
C0007634
cells
C1167069
inner nuclear membrane