#หวยไทยรัฐ 1/8/62 จับคู่เด่นๆให้แล้วจร้า!!
Altitude sickness is a common experience for those traveling to the area of Tibet. It is important to know and understand that each traveler to this area will likely experience some type of reaction to the high altitude of this particular area.
from: http://ezinearticles.com/?Avoiding-Altitude-Sickness&id=3990701
