3061
Gene electrotransfer was first described in the 1980s and since then due to its ease of application and efficiency become a routine method for introducing foreign genes into bacteria l , yeast , plant , and animal cells in vitro and into different tissue s , including muscle , tumor s , liver , and skin in vivo .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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