Emergency Treatment of Headache
Neurol 42 (Suppl 2) :43-44992., Rapoport,A.M.&Silberstein,S.D., 1992
Intrathecal Methylprednisolone for Intractable Postherpetic Neuralgia
NEJM 343:1514-1519,1563, Kotani,N.,et al, 2000
Postherpetic Neuralgia-Pathogenesis, Treatment and Prevention
NEJM 335:32-42, Kost,R.G.&Straus,S.E., 1996