Lee Tat-Leang, Adaikan P Ganesan, Lau Lang Chu, Kumar Ashok, Ratnam Shan S
Department of Anesthesia, National University of Singapore, 5 Lower Kent Ridge Road, 119074, Singapore.
Department of Obstetrics and Gynecology, National University of Singapore, 5 Lower Kent Ridge Road, 119074, Singapore.
J Anesth. 1997 Mar;11(1):71-74. doi: 10.1007/BF02480008.