AMERICAN 303.380 American Academy of Neurology 50th Annual Meeting Program Minneapolis Convention Center Minneapolis, MN April 25-May 2, 1998. - [Hagerstown : Lippincott - Raven Publ. ] , 1998. - 527 s. ; 28 cm. -(Neurology, ISSN 0028-3878 , vol.50, suppl.4)