[THE PROBLEM OF CHILD ONCOLOGY IN POLAND].
D000293:Adolescent; D001699:Biometry; D002648:Child; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007388:Internal Medicine; D009369:Neoplasms / Q000453:epidemiology*; D011044:Poland
ADOLESCENCE; CHILD; INFANT; INFANT, NEWBORN; NEOPLASM STATISTICS; POLAND
ZAGADNIENIE ONKOLOGII DZIECI ECEJ W POLSCE.