Norcia AM, Tyler CW, Piecuch R, Clyman R, Grobstein J. (1987). Visual acuity development in normal and abnormal preterm human infants. J Pediatr. Ophthalmol. Strabis. 24: 70-4.
Norcia AM, Tyler CW, Piecuch R, Clyman R, Grobstein J. (1987). Visual acuity development in normal and abnormal preterm human infants. J Pediatr. Ophthalmol. Strabis. 24: 70-4.