3801
Four hundred two patients with suspected myocardial infarction seen within 6 hours of the onset of symptoms entered a double - blind randomized trial of lidocaine vs placebo .
 Disease: myocardial infarction; Chemical: lidocaine
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: myocardial infarction; Chemical: lidocaine