title: In reply.
authors.affiliation: Los Angeles BioMedical Research Institute at Harbor UCLA, Torrance, California.
authors.forename: Anita L
authors.initials: AL
authors.lastname: Nelson
mesh_terms: D005260:Female; D006801:Humans; D007436:Intrauterine Devices, Medicated / Q000009:adverse effects*; D016912:Levonorgestrel / Q000008:administration & dosage*; D011247:Pregnancy; D018873:Pregnancy Rate
chemical_list: D016912:Levonorgestrel