three steps analgesic ladder

• 三阶梯止痛

three steps analgesic ladder的用法和样例：

例句

1. Opioid is used as an important analgesic drug in cancer pain three steps pharmacotherapy.
   阿片类药物是癌症三阶梯止痛的一类重要药物。
2. Conclusion The Three Ladder Acesodyne Medication in patients with cancer in our hospital was fundamentally rational, but there are still some problems that should be solved.
   结论我院癌痛治疗基本符合三阶梯止痛原则，但仍存在一定的问题，有待于完善。