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If vascular induction between a vascular carrier and the selected jejunal segment is done as a kind of flap prefabrication , the jejunal interposition flap can be used without the need for complex microsurgery .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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