1. Spinal anaesthesia for Caesarean section;Carter;Contemporary Anaesthesia,1994
2. A century of regional analgesia in obstetrics;Gogarten;Anesth Analg,2000
3. Blood pressure variations associated with lumbar puncture and induction of spinal anesthesia;Gray;Quart J Med,1912
4. Warum ist die lumbalanaesthesie beim Kaiserschnitt besonders gefährlich?;Franken;Zentralbl Gyn,1934
5. Spinal anaesthesia in obstetrics;Morgan;Can J Anaesth,1995