The exact cause of lichen planus is unknown. It may be related to an allergic or immune reaction. Risks for the condition include: Exposure to medicines, dyes, and other chemicals (including gold, antibiotics, arsenic, iodides, chloroquine, quinacrine, quinide, phenothiazines, and diuretics)
Closest Airport to Killeen, TX. The closest airport is Robert Gray Army Air Field Airport (GRK). Distance from Robert Gray Army Air Field Airport to Killeen is 11,1 kilometers (6,9 miles).
How many miles from Knock Airport to Shannon Airport? It is approximately 99.4 miles, or 160 kilometers, from Ireland  West Knock International Airport to Shannon Airport. It would take  about 2 hours to drive by car. Bus Eireaâ¦nn offers transport from  Ireland West Knock Airport to Shannon Airport. The closest railway  station is Ballyhaunis.