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 "The 49 men in the study were subject to positron emission tomography scans, while a computer-controlled device sprayed minute amounts of beer, water and a sports drink onto their tongues.". Is that enough to answer the question?
Answer: yes