title: Long-term effects of onabotulinumtoxinA on facial lines: a 19-year experience of identical twins.
authors.affiliation: Department of Medicine, Division of Dermatology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California Department of Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California.
authors.forename: Alexander
authors.initials: A
authors.lastname: Rivkin
authors.forename: William J
authors.initials: WJ
authors.lastname: Binder
mesh_terms: D000328:Adult; D019274:Botulinum Toxins, Type A / Q000008:administration & dosage / Q000627:therapeutic use*; D005123:Eye; D005260:Female; D005546:Forehead; D006801:Humans; D008134:Long-Term Care; D009465:Neuromuscular Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D015595:Skin Aging / Q000187:drug effects*; D014430:Twins, Monozygotic
chemical_list: D009465:Neuromuscular Agents; D019274:Botulinum Toxins, Type A