3007
Based on clinical data , indicating that chloroacetaldehyde ( CAA ) is an important metabolite of oxazaphosphorine cytostatics , an experimental study was carried out in order to elucidate the role of CAA in the development of hemorrhagic cystitis .
 chloroacetaldehyde, CAA, CAA, hemorrhagic cystitis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 chloroacetaldehyde, CAA, CAA, hemorrhagic cystitis