1518
This is primarily based on limited in vitro studies on tumor cells derived from transitional cell carcinoma of the bladder that revealed a dose - and time - dependent inhibition of cell growth by ciprofloxacin at concentrations that are easily attainable in the urine of patients .
 tumor cells, transitional cell carcinoma, bladder, cell, urine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 tumor cells, transitional cell carcinoma, bladder, cell, urine