The exact cause of Barrett's esophagus is not known. It may result from damage to the esophagus caused by the chronic reflux of stomach acid. Frequent or chronic reflux of stomach acid into the esophagus is called gastroesophageal reflux disease or GERD. Gastroesophageal Reflux.
YYC Calgary International Airport, originally named McCall Field (IATA: YYC, ICAO: CYYC), is the international airport that serves Calgary, Alberta, Canada and the surrounding region; it is situated approximately 17 km (11 mi) northeast of downtown Calgary.
Time: 30 minutes to downtown Calgary. There are two public transit routes linking the Calgary International Airport with the city. Route 300 Airport-City Centre is an express bus service that connects the airport with the downtown core. The service is available every 30 minutes from 5 a.m. until midnight every day.