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These properties prompted us to investigate Ets - 1 expression in 32 human astroglial tumors of WHO grades I - IV and to correlate the data with the expression pattern of VEGF , Flt - 1 , and KDR .
 GENE: Ets - 1; GENE: VEGF; GENE: Flt - 1; GENE: KDR
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: Ets - 1; GENE: VEGF; GENE: Flt - 1; GENE: KDR