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1 Director, Ontario Cancer Foundation Windsor Clinic, Windsor, Ontario, Canada
2 Cancer Section, Research and Planning Branch, Ontario Department of Health, Toronto, Ontario, Canada
3 Assistant Director, Research and Planning Branch, Ontario Department of Health, and Medical Statistician, The Ontario Cancer Treatment and Research Foundation, Toronto, Ontario, Canada
1. In the 21 year period 1938 to 1958 inclusive, 1,983 patients with a diagnosis of cancer of the ovary were registered with the 7 regional clinics of The Ontario Cancer Foundation and the Ontario Cancer institute. Selected for study were 1,722 patients treated by radiotherapy or untreated anywhere.
2. Survival rates vary inversely with clinical staging and with the histologic type.
3. Radiotherapy has not increased the survival rate after complete surgical removal of Stage 1 cancer of the ovary over that obtained by surgery alone.
4. In all other stages the addition of radiotherapy has added to the efficiency of surgical treatment.
5. There is a need for a uniform system of reporting clinical stage and histologic type.
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