99
Technetium - 99m stannous pyrophosphate myocardial scintigrams were obtained in 138 clinically stable patients 32 . 7 + / - 47 . 3 weeks ( range 6 to 260 ) after acute myocardial infarction .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None