it is concluded that 1 ) early sf and jm display quantitative heterogeneity , 2 ) pco2 changes within the physiologic range produce large changes in hco3 absorption in early proximal tubules and 3 ) large changes in hco3- reabsorption are dissociated from changes in volume reabsorption during hypocapnia .
C0392762
quantitative
C1514721
range