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The temporal changes in the plasma concentration of immunoreactive atrial natriuretic factor ( iANF ) were studied in six conscious dogs with an arteriovenous ( AV ) fistula , a model of chronic high - output heart failure .
 GENE: immunoreactive atrial natriuretic factor; GENE: iANF
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: immunoreactive atrial natriuretic factor; GENE: iANF