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In conclusion , tube size estimated by Cole ' s formula tends to be smaller than practically appropriate tube size for pediatric cardiac anesthesia , and therefore we suggest new formula to estimate the tube size .
 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