2544
It discusses demographics , clinical characteristics and types of arrhythmia , postulated mechanisms of SIAT , and different treatment possibilities such as medications , surgery , and radiofrequency catheter ablation ( RFCA ) .
 Disease: arrhythmia; Disease: SIAT
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: arrhythmia; Disease: SIAT