Methods : Urinary transferrin ( TRF ) ? retinol - binding protein ( RBP ) and alphl - microglobulin ( A 1 M ) were determined with enzyme - linked immunosorbent assays.

方法 　 采用酶联免疫吸附法测定尿中转铁蛋白 ( TRF ) 、微量白蛋白(mALB) 、视黄醇结合蛋白 ( RBP ) 和α微球蛋白 ( A1M ).

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