title: Letter: Birth defects and oestrogens and progesterones in pregnancy.
mesh_terms: D000014:Abnormalities, Drug-Induced / Q000453:epidemiology*; D000019:Abortifacient Agents / Q000009:adverse effects; D003276:Contraceptives, Oral / Q000009:adverse effects*; D004054:Diethylstilbestrol / Q000009:adverse effects; D045166:Estradiol Congeners / Q000009:adverse effects* / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007557:Israel; D008525:Medroxyprogesterone / Q000009:adverse effects; D011247:Pregnancy; D011258:Pregnancy Tests / Q000009:adverse effects*; D011261:Pregnancy Trimester, First; D011374:Progesterone / Q000009:adverse effects* / Q000627:therapeutic use; D011446:Prospective Studies; D013997:Time Factors
chemical_list: D000019:Abortifacient Agents; D003276:Contraceptives, Oral; D045166:Estradiol Congeners; D011374:Progesterone; D004054:Diethylstilbestrol; D008525:Medroxyprogesterone