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. 2020 Jul 15;22(7):e18548. doi: 10.2196/18548

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©Glen James, Elisabeth Nyman, Marcy Fitz-Randolph, Anna Niklasson, Katarina Hedman, Jonatan Hedberg, Eric T Wittbrodt, Jennie Medin, Carol Moreno Quinn, Alaster M Allum, Cathy Emmas. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 15.07.2020.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.

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Patient-reported comorbidities (retrospective data). Comorbidities reported in addition to CKD (n=1374). CKD: chronic kidney disease; SLE: systemic lupus erythematosus.