799
Effective inhibition of HIF1 alpha is shown by a decrease in the expression of several HIF1 alpha regulated gene products as well as inhibition of angiogenesis in vitro in matrigel assays .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None