A Multi-Country Cluster Randomized Controlled Effectiveness Evaluation to Accelerate the Introduction of Vi Polysaccharide Typhoid Vaccine in Developing Countries in Asia: Rationale and Design
Tropical Medicine & International Health(2005)
关键词
typhoid fever,Vi polysaccharide vaccine,effectiveness trial
AI 理解论文
溯源树
样例

生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要