19942
Sham - operated rats received oral vehicle only ; OVX animals were randomized to receive vehicle , RSG , alendronate ( ALN ) or RSG plus ALN for 12 weeks .
 RSG, alendronate, ALN, RSG, ALN
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 RSG, alendronate, ALN, RSG, ALN