The clinical observation of a small dose of Ropivacaine combined with fentanyl in spinal anesthesia for Pregnancy hypertension syndrome patients of Cesarean Section

The clinical observation of a small dose of Ropivacaine combined with fentanyl in spinal anesthesia for Pregnancy hypertension syndrome patients of Cesarean Section Tianjin Medical Journal . 2012, (11): 1172 -1173 .