title: Difficulties in screening for retinoblastoma.
authors.forename: Rudolph S
authors.initials: RS
authors.lastname: Wagner
mesh_terms: D002648:Child; D002675:Child, Preschool; D003941:Diagnostic Techniques, Ophthalmological; D006801:Humans; D019572:Retinal Neoplasms / Q000175:diagnosis*; D012175:Retinoblastoma / Q000175:diagnosis*