title: Two-plane injection of botulinum toxin for the treatment of glabellar frown lines.
authors.forename: Zafer
authors.initials: Z
authors.lastname: Ozsoy
authors.forename: Aydm
authors.initials: A
authors.lastname: Gözü
authors.forename: Bülent
authors.initials: B
authors.lastname: Genç
mesh_terms: D019274:Botulinum Toxins, Type A / Q000008:administration & dosage*; D005546:Forehead; D006801:Humans; D007273:Injections, Intramuscular; D015595:Skin Aging / Q000187:drug effects*
chemical_list: D019274:Botulinum Toxins, Type A