9Nazir M, Holdcroft A. Local anaesthetic drugs: adverse effect as reported through the ADROIT system in the UK [J]. Pharmacoepidem Drug Saf, 2009, 18 ( 11 ) : 1000-1006.
10Kristensen JD, Karlsten R, Gordh T. Spinal cord blood flow after intratheeal injection of ropivacaine:a screening for neurotoxi effects[J]. Acta Anaesthesiol Scand, 1998, 42(6): 685-690.