1. Combined subarachnoid and epidural techniques;Coates;Anaesthesia,1982
2. Subarachnoid bupivacaine 0.5% for Caesarean section;Carrie;Eur J Anaesthesiol,1984
3. Danger of metallic particles in the spinal-epidural spaces using the needle-through-needle approach [letter];Eldor;Acta Anaesthesiol Scand,1991
4. Metal particle generation caused by the combined spinal-epidural technique [letter];Hargreaves;Br J Anaesth,1993
5. Metal ions as a cause of swelling after local anaesthesia in dental practice;Linqvist;Acta Chir Scand,1948