Polskie Towarzystwo Neurologiczne

X jubilee congress of the Polish Neurological Society : Białystok 22-23 September, 1977 : abstracts, conferences of the scientific sections of Polish Neurological Society and of the Commissions of the Neurological Sciences Committee of the Polish Academy of Sciences, 24 September, 1977, Conference of Developmental Neurology, 21 September, 1977.