EXCERPTA MEDICA INTERNATIONAL CONGRESS SER. ; NR 960 549,586 CURRENT Current concepts in multiple sclerosis : Proceedings of the 6th Congress of the European Committee for Treatment and fiesearch in Multiple Sclerosis (ECTRIMS), Tubingen, 11-13 October 1990 /eds.Horst Wietholter, Johannes Dichgans, Jurgen Mertin. - Amsterdam [etc.] : Excerpta Medica, 1991. - XIV, 390 s. : il., wykr. ; 25 cm (International Congress ser. ; nr 960) ISBN 0 444 81416 7