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UptoDate Oct. 2014, McClain, K.L., 2014
MR Imaging Presentation of Intracranial Disease Associated with Langerhans Cell Histiocytosis
AJNR 25:880-891, Prayer, D.,et al, 2004
Clinicopath Conf., Endheim-Chester Disease
NEJM 359:736-747, Case 25-2008, 2008