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Conclusion The endocrine cells assumed various forms and distributed in the slomach and small intestine of fetuses, especially in the small intestine and duodenum pailla. 結(jié)論胎兒胃腸道含有內(nèi)分泌細胞，其形態(tài)多樣，主要分佈於小腸及十二指腸乳頭部。