求一篇文献

xujie158

http://www.gastrojournal.org/article/S0016-5085(77)70131-3/abstract
9 Y' Q  U' M9 \8 E
9 A/ x6 u$ T' ~7 }5 x- QGastrointestinal cancer studies in the human to nude mouse heterotransplant system7 k9 [: C$ T2 R) X8 H3 e
# w. e& N# W; v' {: o
谢谢