title: Probit analysis, combined spinal and epidural and the duration of spinal block in the obese patient.
authors.forename: L A H
authors.initials: LA
authors.lastname: Critchley
mesh_terms: D000775:Anesthesia, Spinal; D019645:Arthroplasty, Replacement, Knee; D015992:Body Mass Index; D005260:Female; D006801:Humans; D008297:Male