3800
The purpose of the study was to establish the mean value of maximal flow velocity in each particular artery in three age groups , and to observe the changes in this parameter with age .
 Anatomy: artery
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: artery