RT Journal Article SR Electronic T1 A case of chronic paroxysmal hemicrania responding to subcutaneous sumatriptan JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 407 OP 407 DO 10.1136/jnnp.65.3.407 VO 65 IS 3 A1 J PASCUAL A1 J QUIJANO YR 1998 UL http://jnnp.bmj.com/content/65/3/407.1.abstract AB