Correction to: Clinical Rheumatology
10.1007/s10067-020-05248-4
The original published version of the above article contained an error. In the Statistical Analysis section, a minus symbol was use instead of a hyphen in the term “patient-years.” The original article has been corrected.
Footnotes
The online version of the original article can be found at 10.1007/s10067-020-05248-4
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