3978
To evaluate the effect of prostaglandin E1 ( PGE1 ) or trimethaphan ( TMP ) induced hypotension on epidural blood flow ( EBF ) during spinal surgery , EBF was measured using the heat clearance method in 30 patients who underwent postero - lateral interbody fusion under isoflurane anaesthesia .
 Chemical: prostaglandin E1; Chemical: PGE1; Chemical: trimethaphan; Chemical: TMP; Disease: hypotension; Chemical: isoflurane
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: prostaglandin E1, PGE1, trimethaphan, TMP, hypotension, isoflurane 
Answer:
 Chemical: prostaglandin E1; Chemical: PGE1; Chemical: trimethaphan; Chemical: TMP; Disease: hypotension; Chemical: isoflurane