Frequency and characteristics of uncontrolled long-term extensions to randomized controlled trialsChing-Yu Wang, Joan Gretenkord,John D. Seeger,Kourtney J. Davis,Michelle R. Iannacone,Wei Zhou,Nancy Dreyer,Almut G. Winterstein,Nancy Santanello,Barry Gertz,Jesse A. BerlinPHARMACOEPIDEMIOLOGY AND DRUG SAFETY(2020)引用 0|浏览1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