Erratum to: Adult-onset Still's disease or systemic-onset juvenile idiopathic arthritis and spondyloarthritis: overlapping syndrome or phenotype shift?. (30th November 2021) - Mitrovic, Stéphane; Hassold, Nolan; Kamissoko, Aly; Rosine, Nicolas; Mathian, Alexis; Mercy, Guillaume; Pertuiset, Edouard; Nocturne, Gaëtane; Fautrel, Bruno; Koné-Paut, Isabelle