[1] St Louis Hosp, AP HP, Reference Ctr Langerhans Cell Histiocytosis, Paris, France
[2] Univ Paris Diderot, St Louis Hosp, Reference Ctr Langerhans Cell Histiocytosis, Paris, France
[3] Roubaix Hosp, Roubaix, France
[4] Univ Rennes 1, Pontchaillou Hosp, Rennes, France
[5] Univ Lille 2, Calmette Hosp, Lille, France