Due to this high prevalence, vertebral artery hypoplasia (VAH) has not yet been considered an independent risk factor for ischemic stroke [1,2].
How to use your own headphones on Americanâs new 777-300ER. Passengers traveling in First and Business Class on Americanâs new 777-300ER are provided with Bose QuietComfort 15 Acoustic Noise Canceling headphones to use during the flight.
In March 2017, the U.S. government notified nine airlines that operate direct flights from the Middle East and Africa that personal electronics larger than cellphones would be banned on all direct flights entering the U.S. The U.S. Department of Homeland Security stated that the ban would affect 10 airports that it determined did not have adequate ...