title: How to measure oral contraceptive adherence: an ongoing research challenge.
authors.affiliation: Department of Obstetrics and Gynecology, Columbia University, New York, NY.
authors.forename: Paula M
authors.initials: PM
authors.lastname: Castaño
authors.forename: Carolyn L
authors.initials: CL
authors.lastname: Westhoff
mesh_terms: D003276:Contraceptives, Oral / Q000008:administration & dosage*; D005260:Female; D055991:Health Records, Personal; D006801:Humans; D055118:Medication Adherence; D011939:Mental Recall
chemical_list: D003276:Contraceptives, Oral