4244
Cisplatin applied systemically did not cause any significant ABR threshold elevation across the frequencies tested ( 2 - 32 kHz ) , whereas local application of cisplatin through the round window niche or tympanum resulted in significant ABR threshold elevations from high to medium frequencies .
 round window niche, tympanum
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 round window niche, tympanum