2366
Our research questions for the meta - analysis were : Is there a clinical and statistical difference in pain relief , functional improvement , and quality of life between conservative care and cement augmentation for VCF and , if so , are they maintained at longer time points ?
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None