British Journal of Anaesthesia
British Journal of Anaesthesia > 2012 > 109 > 4 > 540-545
British Journal of Anaesthesia > 2012 > 109 > 6 > 851-863
British Journal of Anaesthesia > 2012 > 109 > 4 > 540-545
British Journal of Anaesthesia > 2012 > 109 > 6 > 851-863