RT Journal Article SR Electronic T1 Pneumocephalus as a complication of metastases and eroding infection in the sacral region JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 136 OP 137 DO 10.1136/jnnp.64.1.136 VO 64 IS 1 A1 KSENIJA WILLHEIM A1 ANTE JURJEVIC A1 ZORAN TOMIC YR 1998 UL http://jnnp.bmj.com/content/64/1/136.abstract AB