S. C Shibata, A Mizobuchi, S Shibuta and T. Mashimo
Anesthesia & Analgesia 108 ( 6 ): 1886 - 1888 , 2009
S Shibuta, S Varathan, T Kamibayashi and T. Mashimo
BJA: British Journal of Anaesthesia 104 ( 1 ): 52 - 58 , 2010