2907
Frequencies of ventricular fibrillation were significantly lower ( p less than 0 . 05 ) after iopentol ( 0 % ) and iohexol ( 3 % ) than after metrizoate ( 22 % ) .
 Disease: ventricular fibrillation; Chemical: iopentol; Chemical: iohexol; Chemical: metrizoate
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: ventricular fibrillation; Chemical: iopentol; Chemical: iohexol; Chemical: metrizoate