@misc{9233,
  author = {M. Gulliford and T. van Staa and L. McDermott and G. McCann and J. Charlton and A. Dregan},
  title = {Cluster randomized trials utilizing primary care electronic health records: methodological issues in design, conduct, and analysis (eCRT Study)},
  year = {2014},
  journal = {Trials},
  volume = {15},
  pages = {220},
  issn = {1745-6215},
  doi = {10.1186/1745-6215-15-220},
}