title: Effect of smoking on early pregnancy.
authors.forename: J A
authors.initials: JA
authors.lastname: Baron
authors.forename: I
authors.initials: I
authors.lastname: Persson
mesh_terms: D004967:Estrogens / Q000097:blood*; D005260:Female; D005298:Fertility; D005307:Fertilization in Vitro; D006801:Humans; D012907:Smoking / Q000009:adverse effects* / Q000097:blood
chemical_list: D004967:Estrogens