8933
Here we investigate the role of c - Cbl in development and homeostasis in mice by targeted disruption of the c - Cbl locus . c - Cbl - deficient mice were viable , fertile , and outwardly normal in appearance .
 c - Cbl, c - Cbl locus, c - Cbl
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 c - Cbl, c - Cbl locus, c - Cbl