@misc{9029,
  author = {S. Muller and S. Hider and K. Raza and R. Stack and R. Hayward and C. Mallen},
  title = {An algorithm to identify rheumatoid arthritis in primary care: a Clinical Practice Research Datalink study},
  year = {2015},
  journal = {BMJ Open},
  volume = {5},
  number = {12},
  pages = {e009309},
  issn = {2044-6055},
  doi = {10.1136/bmjopen-2015-009309},
}