1. Ammann AJ, Hong R: Disorders of the T-cell system.In Immunologic Disorders in Infants and Children, 3rd ed ER Stiehm (ed). Philadelphia, WB Saunders, 1989, pp 257?313
2. Barrett DJ, Ammann AJ, Wara DW, Cowen MJ, Fisher TJ, Stiehm ER: Clinical and immunologic spectrum of the DiGeorge syndrome. J Clin Lab Immunol 6:1?6, 1981
3. Goldsobel AB, Haas A, Stiehm ER: Bone marrow transplantation in DiGeorge syndrome. J Pediat 111:40?44, 1987
4. Hong R, Horowitz SD, Borzy MS, Gilbert EF, Arya S, McLeod N, Peterson RDA: The cerebro-hepato-renal syndrome of Zellweger: Similarity to and differentiation from the DiGeorge syndrome. Thymus 3:97?104, 1981
5. Boyum A: Isolation of mononuclear cells and granulocytes from human blood. Scand J Clin Lab Invest 21 (Suppl 97):77?89, 1968