7Haas L M , Miller R J , Niswonger B , et al.Transforming Heterogeneous Data with Database Middleware[J].IEEE Transaction on Data Engineering, 1999,22(1):31-37.
6Clinical Trial EDC Task Group, PhRMA Biostatistics& Data Management Technical Group. ElectronicClinical Data Capture(position paper revision1)[M].USA:The Pharmaceutical Research and Manufacturersof America, 2005.
7Sahoo U, Bhatt A. Electronic data capture(EDC) anew mantra for clinical trials[J]. Qual Assur, 2003,10:117-121.
8Brigitte Walther, Safayet Hossin, John Townend, et al.Comparison of Electronic Data Capture(EDC) withthe Standard Data Capture Method for Clinical TrialData[J]. PloS ONE, 2011, 6:1-11.
