14549
Concerning birth weight , it was significantly lower ( p = 0 . 001 ) in patients ( 2899 . 9 +/- 538 . 3 vs . 3246 . 6 +/- 460 . 2 g ) .
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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