21453
Most IVF - ICSI cycle outcome variables were also similar with the exception of a higher rate of cancellation for poor response ( 3 . 6 % versus 0 . 7 % , p = 0 . 04 ) , a longer duration of stimulation ( 10 . 9 +/- 2 . 2 versus 10 . 1 +/- 2 . 0 days , p = 0 . 001 ) , a higher proportion of women failing to obtain viable embryos ( 17 % versus 7 % , p = 0 . 006 ) , and a lower fertilization rate ( 75 % versus 86 % , p = 0 . 017 ) among cases .
 None
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