Case Records of MGH
NEJM 291:837, 1974. Endodermal sinus tumor in region of Pineal Gland., , 1974
MR of Sarcoidosis in the Head and Spine:Spectrum of Manifestations and Radiographic Response to Steroid Therapy
AJNR 15:973-982, Lexa,F.J.&Grossman,R.I., 1994