title: Reply.
authors.affiliation: Department of Dermatology, Hôpital Saint-Louis, AP-HP.
authors.forename: Marie
authors.initials: M
authors.lastname: Jachiet
authors.affiliation: Department of Internal Medicine, Hôpital Cochin AP-HP, Paris, France.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Terrier
mesh_terms: D001691:Biological Therapy; D014890:Granulomatosis with Polyangiitis; D006801:Humans