997
We found remarkable differences in the expression patterns of MTB - Zf mRNA and two other hybridizable mRNAs of 5kb and 8 . 5 kb when human brain and primary brain tumors were compared .
 GENE: MTB - Zf mRNA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: MTB - Zf mRNA