title: [Failed spinal anaesthesia: technic, pharmacology, anatomy?].
authors.forename: M-E
authors.initials: ME
authors.lastname: Gentili
authors.forename: D
authors.initials: D
authors.lastname: Chassard
mesh_terms: D000368:Aged; D000775:Anesthesia, Spinal / Q000379:methods*; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D006801:Humans; D017211:Treatment Failure