Originally Posted by sinanju

Now you are being deliberately obtuse. The search feature in this forum will turn up any number of postings on the topic with references. Google is also your friend. My own university colleagues don't travel like I do and do not frequent this site. Were you "genuinely interested in reading the opinions/conclusions of an expert" you need only look.

But, if you insist, you can start here. That article includes a peer-reviewed reference.