I want to know the answer to the following question:
How many men were studied for tests on the flavor of beer in the Neuropsychopharmacology journal in 2013?
All the background I'm provided with is that "A study published in the Neuropsychopharmacology journal in 2013 revealed the finding that the flavour of beer alone could provoke dopamine activity in the brain of the male participants, who wanted to drink more as a result.". Is that enough to answer the question?
Answer: no