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We also showed that there was significant enhancement of hair cell uptake of gentamicin in animals whose tympanic bullas were soaked with MB - mixed gentamicin - Texas Red or gentamicin and exposed to ultrasound .
 gentamicin, gentamicin, Texas Red, gentamicin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 gentamicin, gentamicin, Texas Red, gentamicin