Effect of remifentanil or ropivacaine on hemodynamic response to skull-pin insertion for craniotomy
WANG Chang-rui, ZHANG Li-yong, JIN Hai-long, HAN Ru-quan
Chinese Journal of Contemporary Neurology and Neurosurgery . 2010, (5): 553 -556 .  DOI: 10.3969/j.issn.1672-6731.2010.05.011