https://tco9311agonist.com/ion....ising-rays-being-a-c
A total of 60 patients who have been consecutively scheduled for selective lower extremity surgery were enrolled. The patients had been randomly divided into two groups, which each received different concentrations of ropivacaine at different preliminary dosages whenever Dixon's up-and-down sequential strategy had been applied. The large ropivacaine group while the low ropivacaine team obtained 0.75% and 0.5% ropivacaine, correspondingly. The patients' baseline traits, the MLAD, togeth