1984
However , the in vivo attachment strength of the CSTi - 2 coating was comparable both to CSTi - 1 and to an HA - coated control after 8 weeks .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None