title: [Clinical picture of osteosarcoma in children].
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D012516:Osteosarcoma / Q000175:diagnosis* / Q000453:epidemiology; D011044:Poland; D012744:Sex Ratio; D014504:Urban Health
vernacular_title: Obraz kliniczny osteosarcoma u dzieci.