1920
OBJECTIVE : To describe associations between the use of benzodiazepines or related drugs ( BZDs / RDs ) and health , functional abilities and cognitive function in the elderly .
 benzodiazepines, BZDs
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 benzodiazepines, BZDs