00455nas a2200157   4500000000100000008004100001100001400042700001300056700001400069700001300083700001500096700001200111700001400123245014600137022001400283       2018                            d1 aS. Muller1 aS. Hider1 aA. Machin1 aR. Stack1 aR. Hayward1 aK. Raza1 aC. Mallen00aSearching for a prodrome for rheumatoid arthritis in the primary care record: A case-control study in the clinical practice research datalink  a0049-0172