RT Journal Article SR Electronic T1 Autonomic diseases: clinical features and laboratory evaluation JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP iii31 OP iii41 DO 10.1136/jnnp.74.suppl_3.iii31 VO 74 IS suppl 3 A1 Christopher J Mathias YR 2003 UL http://jnnp.bmj.com/content/74/suppl_3/iii31.abstract AB