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There are a number of potential biochemcial markers that may have some role in predicting renal function postnatally. These include urinary sodium, calcium and β2‒microglobulin. The latter may also be measured in fetal serum. However, the accuracy of these parameters at a point in time is far from perfect as urinary tract obstruction is a progressive disease which may be best defined by repeated observations throughout pregnancy. Copyright © 2001 John Wiley & Sons, Ltd. 相似文献