@misc{8504,
  author = {S. Muller and S. Hider and A. Machin and R. Stack and R. Hayward and K. Raza and C. Mallen},
  title = {Searching for a prodrome for rheumatoid arthritis in the primary care record: A case-control study in the clinical practice research datalink},
  year = {2018},
  journal = {Semin Arthritis Rheum},
  issn = {0049-0172},
  doi = {10.1016/j.semarthrit.2018.06.008},
}