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Moreover , following a single intravenous injection of the bicistronic vector complexed to cationic liposomes into recipient mice , delivery of MDR1 and GC cDNAs was achieved in all the organs we tested .
 MDR1, GC cDNAs
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 MDR1, GC cDNAs