2940
In both the lumbar spine and the femur , ELD and ALF monotherapy significantly increased the BMD , and ELD + ALN and ALF + ALN significantly increased the BMD , compared with ALN monotherapy , as an additive effect .
 ELD, ALF, ELD, ALN, ALF, ALN, ALN
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 ELD, ALF, ELD, ALN, ALF, ALN, ALN