1771
The association between opioid dose and QT , and methadone dose and reporting of syncope was assessed using multivariate linear regression and logistic regression , respectively .
 Chemical: methadone; Disease: syncope
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:
 Chemical: methadone; Disease: syncope