Update on retinopathy of prematurity.
D006801:Humans; D007231:Infant, Newborn; D012171:Retinal Vessels / Q000196:embryology; D012178:Retinopathy of Prematurity / Q000145:classification / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control / Q000628:therapy; D012306:Risk; D014481:United States