3351
Following major intracranial surgery in a 35 - year - old man , sodium pentothal was intravenously infused to minimize cerebral ischaemia .
 sodium pentothal, cerebral ischaemia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 sodium pentothal, cerebral ischaemia