Poor Blood Mixing in the Shiley Hardshell Venous Reservoir Proven by Changes in Hematological Data on Different Volume LevelsEllen M.J. Retera, Dick S. de Jong, Willem R.M. Dassen and Olaf C.K.M. PennJ Extra Corpor Technol, 20 (1988) 106-109DOI: https://doi.org/10.1051/ject/198820S106