RT Journal Article SR Electronic T1 Mentha piperita (peppermint). JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 607 DO 10.1136/jnnp.59.6.607 VO 59 IS 6 A1 Haas, L F YR 1995 UL http://jnnp.bmj.com/content/59/6/607.abstract AB