during the first 15 days of life the average rate of increase in glomerular filtration rate per nephron ( 0.48 nl/min.day ) , obtained by dividing the increase in total kidney glomerular filtration rate by glomerular number , was more than twice the observed rate of increase in the superficial nephrons ( 0.21 nl/min.day ) .
C0022646
kidney
C0027713
nephrons