title: [Multiple primary malignant tumors. Clinicopathologic study of 188 cases].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002681:China; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000453:epidemiology / Q000401:mortality / Q000473:pathology*; D012737:Sex Factors