Adjusted hazard ratio of 30-d mortality of patients admitted on weekends, by ratio of registered nurses per ten beds on the weekend.Benjamin D Bray,Salma Ayis,James Campbell,Geoffrey Cloud, M A James,Alex Hoffman,Pippa Tyrrell,C Wolfe,Anthony G Ruddmag(2014)引用 1|浏览2暂无评分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