2653
The free fraction of amitriptyline ( AT ) , measured by equilibrium dialysis in plasma from 29 AT - treated depressed patients , was 5 . 4 - 9 . 8 % ( mean 7 . 7 % ) , which was the same as the values in 26 healthy controls ( 4 . 9 - 9 . 6 % , mean 7 . 6 % ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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