title: Spasmus nutans or congenital nystagmus? Classification according to objective criteria.
mesh_terms: D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D009759:Nystagmus, Pathologic / Q000151:congenital*; D013035:Spasm / Q000175:diagnosis*