2309
Antibiotics commonly used for the management of S . aureus infections appear to create a niche for invasive intracellular S . aureus , which may play an important role for persistence and recurrence of infection .
 intracellular
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 intracellular