title: Walk down, not up to find the paravertebral space.
authors.forename: Steven B
authors.initials: SB
authors.lastname: Porter
authors.forename: Christopher B
authors.initials: CB
authors.lastname: Robards
authors.forename: Steven R
authors.initials: SR
authors.lastname: Clendenen
mesh_terms: D000556:Ambulatory Surgical Procedures / Q000379:methods*; D000771:Anesthesia, Intravenous / Q000379:methods*; D005260:Female; D006801:Humans; D016462:Mammaplasty / Q000379:methods*; D009407:Nerve Block / Q000379:methods*; D010149:Postoperative Pain / Q000517:prevention & control*