title: Cancer occurrence in developing countries.
mesh_terms: D000293:Adolescent; D000328:Adult; D000349:Africa; D000368:Aged; D001208:Asia; D002648:Child; D002675:Child, Preschool; D003906:Developing Countries; D006801:Humans; D007223:Infant; D008875:Middle Aged; D009369:Neoplasms / Q000453:epidemiology*; D010139:Pacific Islands; D013020:South America