@misc{9238,
  author = {R. Mathur and K. Bhaskaran and N. Chaturvedi and D. Leon and T. vanStaa and E. Grundy and L. Smeeth},
  title = {Completeness and usability of ethnicity data in UK-based primary care and hospital databases},
  year = {2014},
  journal = {J Public Health (Oxf)},
  volume = {36},
  number = {4},
  pages = {684-92},
  issn = {1741-3842},
  doi = {10.1093/pubmed/fdt116},
}