Impact of Bronchopulmonary Dysplasia, Brain Injury, and Severe Retinopathy on the Outcome of Extremely Low-Birth-Weight Infants at 18 Months
JAMA 289:1124-1129, Schmidt,B.,et al, 2003
Acquired Ocular Visual Impairment in Children, 1960-1989
Am J Dis Child 147:325-328, Robinson,G.C.&Jan,J.E., 1993