4010
These pauses were always preceded by the short P - P intervals and were usually followed by one or two P - P intervals of 0 . 92 - 0 . 95 s representing the basic sinus cycle .
 None
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:
 None