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We obtained following results by analysis of 355 cases of malignant tumors in patients under 15 years of age who were admitted to the Chonju Presbyterian Medical Center from January 1971 to December 1982. The diagnosis was confirmed by pathologic studies. 1)The most common malignant tumor was leukemia(44.9%). The next in order were lymphoma (14.9%), brain tumor(7. 0%), Wilms tumor(7.0%),... |