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1 UPMC Paris 6, unité fonctionnelle de dermatologie, hôpital Pitié-Salpêtrière, Sorbonne universités, AP-HP, 47-83, boulevard de l'Hôpital, 75013 Paris, France; UPMC Paris 6, service de dermatologie-allergologie, hôpital Tenon, Sorbonne universités, AP-HP, 4, rue de la Chine, 75020 Paris, France; Centre de référence des mastocytoses CEREMAST, hôpital Necker, 149, rue de Sèvres, 75015 Paris, France. Electronic address: stephane.barete@psl.aphp.fr.
1 UPMC Paris 6, unité fonctionnelle de dermatologie, hôpital Pitié-Salpêtrière, Sorbonne universités, AP-HP, 47-83, boulevard de l'Hôpital, 75013 Paris, France; UPMC Paris 6, service de dermatologie-allergologie, hôpital Tenon, Sorbonne universités, AP-HP, 4, rue de la Chine, 75020 Paris, France; Centre de référence des mastocytoses CEREMAST, hôpital Necker, 149, rue de Sèvres, 75015 Paris, France. Electronic address: stephane.barete@psl.aphp.fr.