534
When phentermine was mixed with other unlabeled reversible MAO inhibitors ( e . g . pseudoephedrine , ephedrine , norephedrine ; estradiol benzoate ) , the degree of MAO inhibition was additive .
 GENE: MAO; 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: MAO; GENE: MAO