It is the better concentration of ropivacaine used for labor analgesia. 是硬膜外分娩镇痛较为理想的药物浓度。
As a new subjcct, there has been no teaching syllabus and schoolbook, there are many focuses of debate in labor analgesia. 摘要分娩镇痛是一门新兴学科，尚无现成的教学大纲和教科书，也有许多争义的焦点。
