title: Tumours in children.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D005315:Fetal Diseases / Q000209:etiology; D006801:Humans; D007223:Infant; D007968:Leukoencephalopathy, Progressive Multifocal / Q000150:complications; D008297:Male; D008431:Maternal-Fetal Exchange; D009207:Myoclonus / Q000150:complications; D009369:Neoplasms / Q000139:chemically induced / Q000151:congenital / Q000175:diagnosis / Q000453:epidemiology / Q000235:genetics / Q000628:therapy*; D009381:Neoplasms, Radiation-Induced / Q000151:congenital; D010348:Patient Care Team; D011247:Pregnancy; D011788:Quality of Life; D006113:United Kingdom