4824
The inhibition of monoamine oxidase ( MAO ) by tranylcypromine was studied in 6 healthy volunteers given increasing doses of 10 , 15 , 20 and 25 mg / day over a 4 - week period .
 GENE: monoamine oxidase; GENE: MAO
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: monoamine oxidase; GENE: MAO