Variations of Leigh's disease, E.Adickes; pathology of the spleen in pediatric HIV infections, V.Anderson; chronic granulomatous disease of childhood, R.Baehner; pathology of intragestational intervention in twin to twin transfusion syndrome, V.Baldwin; neuropeptide Y as tumour marker in neuroblastoma, O.Bjork; atherosclerosis - a pediatric problem?, M.Haust; biological and ultrastructural aspects of iron overload - an overview, T.Iancu; soft tissue tumours in infants, H.Isaacs; cell differentiation in culture, P.Jones; AIDS in children, V.Joshi; the development of the hepatic ductal plate, B.Ruebner; sudden infant death syndrome, M.Valdes-DaPena.