Operational research in low-income countries.Olaf Horstick,Johannes Sommerfeld,Axel Kroeger,Robert RidleyThe Lancet Infectious Diseases(2010)引用 7|浏览7暂无评分关键词operations research,low income countriesAI 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