Clinical Manifestations, Pathologic Features, and Diagnosis of Langerhans Cell Histiocytosis
UptoDate Oct. 2014, McClain, K.L., 2014
Disorders of the Nervous System Caused by Drugs, Toxins, and Chemical Agents, Lead
Adams & Victors Principles of Neurology Chp 43, pg 1220, Ropper, A.H.,et al, 2014