求一篇文献

xujie158

http://www.gastrojournal.org/article/S0016-5085(77)70131-3/abstract) c2 d& ?; G/ y2 n! t- _# l' I% d
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Gastrointestinal cancer studies in the human to nude mouse heterotransplant system, g' }% M9 g8 v4 h' j* y
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