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Total 460 cases of benign and malignant tumors below 20 years of age who admitted to Kyung Hee University Hospital for 5 years from January 1980 to December 1984 were clinically analized and the following results were obtained.1) Among 460 benign and malignant tumors, malignant tumors were 201 cases(43.7%)
and benign tumors were 259 cases(56.3%). 2) The male to female incidence ratio was... |