RT Journal Article SR Electronic T1 Intracranial hypotension after chiropractic manipulation of the cervical spine JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 821 OP 822 DO 10.1136/jnnp.74.6.821 VO 74 IS 6 A1 J Beck A1 A Raabe A1 V Seifert A1 E Dettmann YR 2003 UL http://jnnp.bmj.com/content/74/6/821.abstract AB