Objective To analyze the high risk factors of parenteral nutrition-associated cholestasis(PNAC)in the very low birth weight infants(VLBWI).

• 目的分析极低出生体重儿(very low birth weight infant,VLBWI)发生肠外营养相关胆汁淤积(parenteral nutrition-associated cholestasis,PNAC)的高危因素。