title: In utero exposures and breast cancer: a study of opposite-sexed twins.
authors.affiliation: Department of Medical Epidemiology, Karolinska Institutet, Stockholm, Sweden. magnus.kaijser@mep.ki.se
authors.forename: M
authors.initials: M
authors.lastname: Kaijser
authors.forename: P
authors.initials: P
authors.lastname: Lichtenstein
authors.forename: F
authors.initials: F
authors.lastname: Granath
authors.forename: G
authors.initials: G
authors.lastname: Erlandsson
authors.forename: S
authors.initials: S
authors.lastname: Cnattingius
authors.forename: A
authors.initials: A
authors.lastname: Ekbom
mesh_terms: D001724:Birth Weight; D001943:Breast Neoplasms / Q000139:chemically induced / Q000209:etiology*; D016022:Case-Control Studies; D004967:Estrogens / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008297:Male; D016017:Odds Ratio; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D012306:Risk; D013548:Sweden
chemical_list: D004967:Estrogens