title: BMI and OCP failure.
authors.forename: Susan
authors.initials: S
authors.lastname: Richman
mesh_terms: D015992:Body Mass Index; D003278:Contraceptives, Oral, Hormonal / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D010349:Patient Compliance; D049168:Pregnancy, Unplanned; D017211:Treatment Failure
chemical_list: D003278:Contraceptives, Oral, Hormonal