@article{article, title  = {{Clinical features in primary care electronic records before diagnosis of ankylosing spondylitis : a nested case-control study}},

 publisher = {{Springer Science and Business Media LLC}},

 url = {{}},

 year = {{2020}},

 month = {{5}},

 author = {{Bashir MT and Iversen L and Burton C}},

 doi = {{10.1186/s12875-020-01149-2}},

 volume = {{21}},

 journal = {{BMC Family Practice}},

 issue = {{1}},

 note = {{Accessed on 2024/12/22}}}