1. 1. Lichtenstein L: Histiocytosis X: integration of eosinophilic granuloma of the bone LettererSiwe disease and "Schuller-Christian disease" as related manifestation of a single nosologic entity. Arch Pathol 56:84 1953.
2. 2. Rappaport H: Tumors of the hematopoietic system. In Atlas of Tumor Pathology Section 3 fascicle T Washington. D.C. Armed Forces Institute of Pathology 1966.
3. 3. Handerson JW: Orbital Tumors. Philadelphia London Toronto W.B. Saunders & Co 1973 ? 382.
4. 4. Farber S: The nature of 'solitary or eosinophilic granuloma' of bone. Am J Pathol 17:625 1941.
5. 5. Oberman HA: Idiopathic histiocytosis: a correlative review of eosinophilic granuloma Hand Schuller Christian and Letterer-Siwe disease. J Ped Ophthalmol 5:86 1968.