title: Reply to Dr. Orebaugh.
authors.forename: Edel
authors.initials: E
authors.lastname: Duggan
authors.forename: Richard
authors.initials: R
authors.lastname: Brull
authors.forename: Vincent W S
authors.initials: VW
authors.lastname: Chan
mesh_terms: D000779:Anesthetics, Local / Q000008:administration & dosage*; D001917:Brachial Plexus / Q000000981:diagnostic imaging*; D006801:Humans; D009407:Nerve Block / Q000379:methods*; D014463:Ultrasonography
chemical_list: D000779:Anesthetics, Local