12830
These efforts are aimed at improving one or more metrics for clinical tests , including improved sensitivity , increased speed , reduced cost , smaller sample size , the ability to analyze multiple antigens in parallel and ease of use .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None