title: A 9-year observation of Letterer-Siwe disease in a child with long-term maintenance of remission.
mesh_terms: D002648:Child; D002675:Child, Preschool; D005500:Follow-Up Studies; D006646:Histiocytosis, Langerhans-Cell / Q000188:drug therapy*; D006801:Humans; D007223:Infant; D008297:Male; D012075:Remission, Spontaneous