Randomized Controlled Trial

The effect of addition of intrathecal clonidine to hyperbaric bupivacaine on postoperative pain and morphine requirements after Caesarean section: a randomized controlled trial.

Br J Anaesth. 2006 Sep 1;97(3):365-70.
Review

Low-dose spinal anaesthesia for Caesarean section to prevent spinal-induced hypotension.

Curr Opin Anaesthesiol. 2008 Jun 1; 21 (3): 259-62.
Randomized Controlled Trial

Spinal anaesthesia for Caesarean section with bupivacaine 5 mg ml(-1) in glucose 8 or 80 mg ml(-1).

Br J Anaesth. 2001 Jun 1;86(6):805-7.