Healthcare trajectory of children with rare bone disease attending pediatric emergency departments. - Yang, David Dawei; Baujat, Geneviève; Neuraz, Antoine; Garcelon, Nicolas; Messiaen, Claude; Sandrin, Arnaud; Cheron, Gérard; Burgun, Anita; Pejin, Zagorka; Cormier-Daire, Valérie; Angoulvant, François (Orphanet Journal of Rare Diseases, 2020)