Retinoblastoma, especially the uni- lateral form, occurred more commonly in Queensland than in either Manchester or the United States, but as the Queensland incidence is based on only 20 cases, the difference may not be significant.
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Retinoblastoma, especially the uni- lateral form, occurred more commonly in Queensland than in either Manchester or the United States, but as the Queensland incidence is based on only 20 cases, the difference may not be significant.