547,562 HEADACHE Headache in children and adolescents : Proceedings of the First International Symposium on Headache in Children and Adolescents, Pavia, Italy, 19-20 May 1988 / ed. G. Lanzi, U. Balottin, A. Cernibori ; [University of Pavia et al.], - Amsterdam ; New York ; Oxford : Excerpta Medica, 1989. -XI, [1], 371 s. : il., wykr. ; 25 cm (International Congress Series / Excerpta Medica ; 833) ISBN 0-444-81074-9