From the Department of Anaesthesia and Intensive Care, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin (PA, RKS, SS, WS, MKK)

Correspondence to Manoj K. Karmakar, MD, FRCA, Department of Anaesthesia and Intensive Care, Faculty of Medicine, The Chinese University of Hong Kong, Room 0421D, 4/F, Main Clinical Block and Trauma Centre, Prince of Wales Hospital, Shatin, New Territories, Hong Kong, SAR, China Tel: +852 3505 2735; fax: +852 3505 2422; e-mail: [email protected]