7Globerson A, Effros RB. Ageing of lymphocytes and lymphocytes in the aged [Jl. Immunol Today, 2000,21(10): 515-521.
8Chakravarti B, Abraham GN. Aging and T- cell- mediated immunity[J]. Mech Ageing Dev, 1999,108(3): 183- 206.
9Malaguamera L, Ferlito L,Imbesi RM, et al. Immunosenescence: a review [J]. Arch Gerontol Geriatr, 2001,32(1) : 1- 14.
10Grubeck- Loebenstein B, Wick G. Proceedings of a symposium on "immunosenescence - a major cause of disease in the elderly: from molecules to patients" summary[ J ]. Fap Gerontol, 1999,34(3) : 407 -411.