electron microscopic characterization of the 3- and 23-month-old cellular subpopulations identified the following components , g/ml : debris and nonviable cells ( 1.020-1.025 ) nonsecretory epithelial cells ( 1.038-1.039 ) , secretory epithelial cells ( 1.047-1.048 ) , basal epithelial cells ( 1.057-1.059 ) , differentiating epithelial cells ( 1.070-1.075 ) , erythrocytes ( 1.085-1.089 ) .
C0007634
cells
C1327616
secretory