@misc{10046,
  author = {M. Gulliford and G. Adams and O. Ukoumunne and R. Latinovic and S. Chinn and M. Campbell},
  title = {Intraclass correlation coefficient and outcome prevalence are associated in clustered binary data},
  year = {2005},
  journal = {J Clin Epidemiol},
  volume = {58},
  number = {3},
  pages = {246-51},
  issn = {0895-4356 (Print) 0895-4356},
  doi = {10.1016/j.jclinepi.2004.08.012},
}