Authors: Kam Lun E Hon; Terence Chuen Wai Poon; William Wong; Kin Kit Law; Hiu Wing Mok; Ka Wing Tam; Wai Kin Wong; Hiu Fung Wu; Ka Fai To; Kam Lau Cheung; Hon Ming Cheung; Ting Fan Leung; Chi Kong Li; Alexander K C Leung Journal: BMC Anesthesiol Date: 2013-11-17 Impact factor: 2.217