4681
At 36 months , 91 % of patients showed no recurrence of AUB and a significant reduction in the mean endometrial thickness ( from 8 . 2 +/- 2 . 2 to 3 . 2 +/- 1 . 5 mm , p < 0 . 05 ) was observed .
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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