The present day facility incorporates the site of the first official Grand Canyon airport, a landing field authorized by the U.S. Forest Service for commercial flights in 1925. The new airport first opened for business in October 1965. The airport terminal was completed and formally dedicated on October 20, 1967.
Researchers arenât sure what causes placenta previa, but it is slightly more common in older mothers, women with a history of prior cesarean section or abortion and women with a history of smoking or cocaine use during pregnancy.
1 Placenta previa can cause severe vaginal bleeding before or during delivery. 2  A C-section delivery usually is required if the placenta previa is present at the time of delivery. 3  Placenta accreta. 4  This condition occurs when the blood vessels of the placenta grow too deeply into the uterine wall. Placenta previa can cause severe vaginal bleeding before or during delivery. 2  A C-section delivery usually is required if the placenta previa is present at the time of delivery. 3  Placenta accreta. 4  This condition occurs when the blood vessels of the placenta grow too deeply into the uterine wall.