title: In reply.
authors.affiliation: Cleveland Clinic, Cleveland, Ohio (D.I.S.). ds@or.org; on the world wide web, www.OR.org.
authors.forename: Ehab
authors.initials: E
authors.lastname: Farag
authors.forename: Edward J
authors.initials: EJ
authors.lastname: Mascha
authors.forename: Louran
authors.initials: L
authors.lastname: Mounir
authors.forename: Wael
authors.initials: W
authors.lastname: Ali Sakr Esa
authors.forename: Daniel I
authors.initials: DI
authors.lastname: Sessler
mesh_terms: D002404:Catheterization / Q000379:methods*; D005260:Female; D005267:Femoral Nerve / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D009407:Nerve Block / Q000379:methods*; D018084:Ultrasonography, Interventional / Q000379:methods*