Epidemiology of strabismus.
D005191:Family Characteristics; D005260:Female; D005403:Fixation, Ocular; D006798:Housing; D006801:Humans; D008297:Male; D012574:Schools; D012923:Social Class; D013285:Strabismus / Q000453:epidemiology*; D014792:Visual Acuity; D014852:Wales