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1 Service de médecine interne, hôpital Ambroise-Paré, Assistance publique-Hôpitaux de Paris, 9, avenue Charles-de-Gaulle, 92000 Boulogne-Billancourt, France. Electronic address: Kevin.chevalier@aphp.fr.
2 Division of Rheumatology, Department of Medicine, Karolinska Institutet, Stockholm, Suède.
3 Équipe auto-immunité et immunité lymphocytaire B, institut Necker-Enfants-Malades, Paris, France.
1 Service de médecine interne, hôpital Ambroise-Paré, Assistance publique-Hôpitaux de Paris, 9, avenue Charles-de-Gaulle, 92000 Boulogne-Billancourt, France. Electronic address: Kevin.chevalier@aphp.fr.
2 Division of Rheumatology, Department of Medicine, Karolinska Institutet, Stockholm, Suède.
3 Équipe auto-immunité et immunité lymphocytaire B, institut Necker-Enfants-Malades, Paris, France.