4260
The patients were randomly allocated to one of three groups ; those in group A ( n = 10 ) were subjected to controlled hypotension alone , those in group B ( n = 10 ) to haemodilution alone and those in group C ( n = 10 ) to both controlled hypotension and haemodilution .
 hypotension, haemodilution, hypotension, haemodilution
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 hypotension, haemodilution, hypotension, haemodilution