@ARTICLE{Tang+LingETAL-Confintediffbetw:10,
  author       = {Tang, M. L. and Ling, M. H. and Ling, L. and Tian, G. L.},
  title        = {Confidence intervals for a difference between proportions based on paired data},
  journal      = {Stats. Medicine},
  fjournal     = {Statistics in Medicine},
  volume       = {29},
  number       = {1},
  pages        = {86-96},
  year         = {2010},
}