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. 2021 Apr 30;31(11):8208–8217. doi: 10.1007/s00330-021-07970-2

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© The Author(s) 2021

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Fig. 2 — Flow diagram participants. One patient was excluded for the presence of a brain tumor and one for the presence of a large arachnoid cyst (indicated with an asterisk symbol). NPSLE, neuropsychiatric systemic lupus erythematosus; Non-NPSLE, non-neuropsychiatric systemic lupus erythematosus