MR Imaging of Pineal Tumors
AJR 155:143-151, Tien,R.D.,et al, 1990
Case Record of the M. G. H.
Glioblastoma Multiforme of Pons, NEJM 296:8651977., , 1977
Brain Stem Tumors of Childhood & Adolescence
Am J Dis Child 119:465-472, Panitch,H.S.,et al, 1970