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Forest plot of meta-analysis of renal function-related markers in preterm infants compared to full-term controls. Some studies with high disparity were removed from analysis to control high heterogeneity. Abbreviations: BUN, blood urea nitrogen; CI, confidence interval; ERPF, effective renal plasma flow; GFR, glomerular filtration rate; SCr, serum creatinine; SD, standard deviation; Std, standardized; U albumin/Cr, urine albumin to creatinine ratio.
