4056
The participating laboratories received two identical blood specimens : in an EDTA tubes ( unstabilized blood ; n = 67 ) or in tubes designed specifically for the stabilization of intracellular RNA in blood ( PAXgene (R) Blood RNA tubes ; n = 35 ) .
 Chemical: EDTA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: EDTA