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.
No coupon or promo code is even required to secure this benefit. Since your SkyMiles Frequent Flyer and American Express Delta credit card accounts are already linked, all you must do is provide your SkyMiles number when booking your flight and the checked luggage fee waiver will automatically be applied.