1. Alexander, R. F. and A. I. Spriggs: J. clin. Path.15, 188 (1962).
2. Bass, C. C. and F. M. Johns: Amer. J. Trop. Dis. prev. Med.3, 298 (1916).
3. Bast, G.: Zur Methodik des Leukozytenkonzentrates. Hamatologentagung, Leipzig 1963.
4. Brandt, L., J. Börjeson, A. Norden and I. Olsson. Acta med. Scand.172, 459, (1962).
5. Cassen, B., J. Hitt and E. F. Hays: J. Lab. Clin. Med.52, 778 (1958).