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.
Who is at risk for placenta previa? Placenta previa is found in approximately four out of every 1000 pregnancies beyond the 20th week of gestation. Asian women are at a slightly greater risk for placenta previa than are women of other ethnic groups, although the reason for this is unclear.