7[1]Folkman J,Hochbergm. Self-regulation of growth in three dimensions [J]. J Exp Med,1973,138(4):745-753.
8[2]Vaupl P,Kallinowski F,Okunieff P. Blood flow oxygen and nutrient supply,and metabolic microenvironment of human tumors:a review[J].Cancer Res,1989,49(23):6449-6465.
9[5]Adler DD,Carson PL,Rubin JM,et al. Doppler ultrasound color flow imaging in the study of breast cancer: Preliminary findings [J]. Ultrasound Med Biol,1990,16(6): 553-559.
10[7]Cosgrove DO,Bamber JC,Davery JB,et al. Color Doppler signals from breast tumors:work in progress[J].Radiology,1990,176(1):175-180.
