4776
Retroviral vector producer cell populations and cell clones were established for each chLTR vector , and all were capable of yielding high vector titers ( > 10 ( 5 ) G418R cfu / ml on NIH - 3T3 ) .
 GENE: chLTR; GENE: G418R
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: chLTR; GENE: G418R