title: Reply to Dr. Cornish.
authors.forename: Steven H
authors.initials: SH
authors.lastname: Renes
authors.forename: Mathieu J
authors.initials: MJ
authors.lastname: Gielen
authors.forename: Geert J
authors.initials: GJ
authors.lastname: van Geffen
authors.forename: Hubertus H
authors.initials: HH
authors.lastname: Spoormans
authors.forename: Harald C
authors.initials: HC
authors.lastname: Rettig
mesh_terms: D001917:Brachial Plexus / Q000000981:diagnostic imaging*; D006801:Humans; D009407:Nerve Block / Q000379:methods*; D010291:Paresis / Q000517:prevention & control*; D010791:Phrenic Nerve; D014463:Ultrasonography