METHODS We collected all of related literatures in Chinese Biological Medicine Digest (CBMD) from 1987 to 1999. Then systematic review, cost effectiveness and sensitivity analysis were employed.
方法收集中国生物医学文摘（CBMD） 1987/1999的所有相关文献，进行系统综述、成本效益和灵敏度分析。
METHODS We collected all of related literatures in Chinese Biological Medicine Digest (CBMD) from 1987 to 1999. Then systematic review, cost effectiveness and sensitivity analysis were employed.
方法收集中国生物医学文摘（CBMD） 1987/1999的所有相关文献，进行系统综述、成本效益和灵敏度分析。
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