Childhood leukaemia and mother-foetus infection.
D002648:Child; D002675:Child, Preschool; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007938:Leukemia / Q000209:etiology*; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011248:Pregnancy Complications; D014777:Virus Diseases / Q000635:transmission*