547,990 PASCUAL-CASTROVIEJO IGNACIO Spinal tumors in children and adolescents/ Ingacio Pascual-Castroviejo with contributions from : David G. Ashley [et al.]. - New York : Raven Press, [1990]. - XV, [3], 296 s. ; il,, wykr. ; 24 cm (The International Review of Child Neurology) ISBN 0-88167-576-8