2718
Antiprogestin RU - 486 inhibits the induction of VEGF and TSP - 1 by progestins , suggesting that this effect of progestin is mediated by the progesterone receptor ( PR ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
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