title: Chromosome abnormalities in oral contraceptive breakthrough pregnancies.
mesh_terms: D002869:Chromosome Aberrations / Q000139:chemically induced*; D025063:Chromosome Disorders; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D011247:Pregnancy
chemical_list: D003276:Contraceptives, Oral