Objective:To Study of the effects on the biological behavior of the VX2 pyriformsinuscarcinoma(PSC) model with Qing Liu Ling Hou prescription; and to study the mechanism of the therapeutic effect with it.Methods:1. Establishment of Rabbit VX2 pyriformsinuscarcinoma model:To establish a rabbit VX2 hypolaryngocarcinom (HPC) model and observe it's growth. After anesthesia,tumor tissues from the VX2 cancer New Zealand rabbit was implanted to the rabbits'groin to passage.Then tumor tissues from the passaged- rab...