Transmissible diseases and blood transfusion : proceedings of the twenty-sixth International symposium on blood transfusion, Groningen, NL, organized by the Sanquin Division Blood Bank Noord Nederland / ed. by C.TH. Smit Sibinga and R.Y. DoddCellular engineering and cellular therapies : proceedings of the twenty-seventh international symposium on blood transfusion, Groningen, organized by the Sanquin Division Blood Bank North-East, Groningen / ed. by C. Th. Smit Sibinga and L.F.M.H. de Leij