3371
Cerebral blood flow and cerebral metabolic rate for oxygen were measured during isoflurane - induced hypotension in 10 patients subjected to craniotomy for clipping of a cerebral aneurysm .
 Chemical: oxygen; Chemical: isoflurane; Disease: hypotension; Disease: cerebral aneurysm
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: oxygen, isoflurane, hypotension, cerebral aneurysm 
Answer:
 Chemical: oxygen; Chemical: isoflurane; Disease: hypotension; Disease: cerebral aneurysm