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Our results indicate that whether to treat osteopenia with alendronate should be determined on the basis of age , BMD , and number of clinical risk factors in terms of cost - effectiveness .
 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