目的：探讨极低出生体重儿（VL BW）早产儿视网膜病（ROP）的患病率、高危因素。

Objective:To investigate the incidence and risk factors of retinopathy of prematurity (ROP) in very low birth weight infants(VLBW).

youdao

目的：探讨极低出生体重儿（VL BW）早产儿视网膜病（ROP）的患病率、高危因素。

Objective:To investigate the incidence and risk factors of retinopathy of prematurity (ROP) in very low birth weight infants(VLBW).

youdao