Clinical Manifestations, Pathologic Features, and Diagnosis of Langerhans Cell Histiocytosis
UptoDate Oct. 2014, McClain, K.L., 2014
Difficult Asthma or Churg-Strauss Syndrome? Steroids May be Masking Undiagnosed Cases of Churg-Strauss Syndrome
BMJ 318:475-476, D'Cruz,D.P.,et al, 1999
Neurological Complications of Wegener's Granulomatosis
Arch Neurol l8:45, 1963, Drachman,D., 1963