14303
Women ' s waist decreased from 90 . 9 +/- 1 . 6 cm to 84 . 6 +/- 2 . 1 cm and to 83 . 6 +/- 2 . 2 cm after 3 and 6 months .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None