Recommendations regarding splenectomy in hereditary hemolytic anemias by Iolascon, A, Andolfo, I, Barcellini, W, Corcione, F, Garçon, L, De Franceschi, L, Pignata, C, Graziadei, G, Pospisilova, D, Rees, DC, de Montalembert, M, Rivella, S, Gambale, A, Russo, R, Ribeiro, L, Vives-Corrons, J, Martinez, PA, Kattamis, A, Gulbis, B, Cappellini, MD, Roberts, I, Tamary, H