NEFROLOGIA. Vol. XIX. Suplemento 3. 1999 CONTENTS ERYTHROPOIETIN SYMPOSIUM Madrid, November 27th, 1998 · Erythropoietin. Past and some future questions J. Mateos · Resistance to the treatment with r-H-erythropoietin J. M. López-Gómez and F. Valderrábano · Erythropoietin: platelets and endothelium A. Cases, M. Díaz-Ricart, J. C. Reverter, D. Tassies and G. Escolar · Optimization of r-H-erythropoietin in hemodialysis J. M. Cruz · Correction of anemia with r-H-erythropoietin in peritoneal dialysis R. Selgas, M. A. Bajo and A. Aguilera · r-H-erythropoietin therapy in the early post-transplant period J. M. Campistol, D. Soy, D. Tasias, J. Vilardell, M. J. Ricart, J. V. Torregrosa, F. Cofan and F. Oppenheimer · Correction of anemia in chronic rejection nephropathy F. Ortega, J. Baltar, P. Rebollo and J. Alvarez-Grande · ABSTRACTS FROM THE XV MEETING OF THE NEPHROLOGY SOCIETY OF CANARIAN