Antiseptic solutions for central neuraxial blockade: which concentration of chlorhexidine in alcohol should we use?

中枢神经阻滞时溶解于酒精中的防腐定浓度应为多少？

The study suggests that the chlorhexidine varnish system is effective of anticaries and can maintain microflora balance in oral bacteria.

提料系统具有防龋功效，同时能维持口腔菌系平衡。