1886
The 3 . 3 - fold higher expression in the fetal heart than in the adult heart suggests that HFHZ mRNA is downregulated in the process of development .
 GENE: HFHZ 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: HFHZ mRNA