I

Iwagami, M, Caplin, B, Smeeth, L, Tomlinson, LA and Nitsch, D (2018). Clinical Codelist - Read codes for Rheumatoid Arthritis. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00000871.

Iwagami, M and Tomlinson, LA (2020). Clinical codelist - Rheumatoid arthritis codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001678.

Iwagami, M, Tomlinson, LA, Mansfield, KE, Douglas, IJ, Smeeth, L and Nitsch, D (2018). Clinical codelist - Rheumatoid Arthritis read codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00000884.

M

Matthews, A and Strongman, H (2019). Covariate Code List - Rheumatoid arthritis. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001131.