28152
The difference in the rate of congenital anomalies was not statistically significant [ 7 / 97 ( 7 . 2 % ) vs . 15 / 440 ( 3 . 4 % ) , p = 0 . 094 ] .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None