Frequency of very late fatal sepsis after splenectomy for hereditary spherocytosis: impact of insufficient antibody response to pneumococcal infection. - Eber,S.W.; Langendorfer,C.M.; Ditzig,M.; Reinhardt,D.; Stohr,G.; Soldan,W.; Schroter,W.; Tchernia,G. (Ann Hematol, 1999)