4069
In patients with various chest pain syndromes , verapamil neither increased the frequency of junctional rhythms nor suppressed their role as escape rhythms under physiologically appropriate circumstances .
 Disease: chest pain; Chemical: verapamil
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: chest pain; Chemical: verapamil