RT Journal Article SR Electronic T1 High dose intravenous methylprednisolone in cluster headache JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 418 OP 418 DO 10.1136/jnnp.64.3.418 VO 64 IS 3 A1 CARLO CIANCHETTI A1 ALESSANDRO ZUDDAS A1 FRANCESCA MARCHEI YR 1998 UL http://jnnp.bmj.com/content/64/3/418.1.abstract AB