2247
Probabilistic sensitivity analysis for the base case showed that in the presence of one , two , and three risk factors , alendronate was cost - effective in 0 . 2 % to 2 . 6 % , 13 . 1 % to 56 . 1 % , and 99 . 1 % of the simulations , respectively , if society is willing to pay $ 50 , 000 per QALY .
 Chemical: alendronate
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: alendronate