211 SPANISH REGISTRY OF ERYTHROPOIETIC STIMULATING AGENTS STUDY: THE LARGEST RETROSPECTIVE STUDY OF ESAS FOR THE TREATMENT OF ANEMIA IN LOWER RISK MDS PATIENTS. Issue 1 (April 2015) - Campelo, M. Diez; Lorenzo, J.I.; Benlloch, L.; Lopez-Pavia, M.; Such, E.; Bernal, T.; Luño, E.; Davila, J.; Ramos, F.; Calabuig, M.; Pomares, H.; Gonzalez, B.; et al.