8Fonseca A M,Pereira C F,Arosa F A. Red blood cells promote survival and cell cycle progression of human peripheral blood T cells independently of CD58/LFA-3 and heme compounds [J]. Cellular Immunology, 2003,224 (1) : 17-28.
9Lee D N,Kuo T Y,Chen M C. Expression of porcine epidermal growth factor in Piehia pastoris and it' s biology activity in early-weaned piglets [J]. Life Science, 2006,78 : 649-654.
10Hansen P J, Wenjun L. Immunological aspects of pregnanly: Concepts and speculations using the sheep as a model [J]. Anita Reprod Sci, 1996,42:483.
