[文献资料]【参考文献】

Preterm-associated visual impairmentand estimates of retinopathy of prematurity at regionaland global levels for.5 . fas MA ， Chan RV . Intravitreal anti-VEGF therapy as a treatment for retinopathy of prematurity ： whatwe know after 7 years .6 .中华医学会眼科学分会 ......