title: Unusual regional block.
authors.forename: M J
authors.initials: MJ
authors.lastname: Douglas
mesh_terms: D000005:Abdomen / Q000294:innervation / Q000601:surgery; D015360:Analgesia, Epidural; D016362:Analgesia, Obstetrical; D000773:Anesthesia, Obstetrical; D000775:Anesthesia, Spinal; D005260:Female; D006801:Humans; D009407:Nerve Block; D009767:Obesity, Morbid / Q000601:surgery; D011247:Pregnancy; D012600:Scoliosis / Q000503:physiopathology; D013127:Spinal Nerves / Q000187:drug effects / Q000503:physiopathology