[Progress in the sectors in 1981].
D002648:Child; D002675:Child, Preschool; D005139:Eyeglasses; D005403:Fixation, Ocular; D006801:Humans; D007223:Infant; D009988:Orthoptics; D013285:Strabismus / Q000628:therapy*; D014794:Visual Fields
Progrès des secteurs en 1981.