Prenatal ultrasound examinations and risk of childhood leukaemia: case-control study.
Naumburg
E
E
Department of Women's and Children's Health, Section for Paediatrics, Uppsala University, S-751 85 Uppsala, Sweden. Estelle.Naumburg@pediatrik.uu.se
Bellocco
R
R
Cnattingius
S
S
Hall
P
P
Ekbom
A
A
D016022:Case-Control Studies; D002648:Child; D005260:Female; D006801:Humans; D007938:Leukemia / Q000209:etiology*; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D012307:Risk Factors; D016216:Ultrasonography, Prenatal / Q000009:adverse effects*