China is one of the countries with most serious natural disasters lose all over the world.Natural disasters are a public emergency.Human society can't avoid the natural disasters today,so the global target of a struggle is to reduce the loss of natural disasters.The natural disasters loss will be reduced to a minimum,once the system is established of medical rescue and emergency management by the government.

0.05). ConclusionsWhen varicose veins of the lower extremity with deep vein insufficiency exists, patients should undergo high ligation and stripping of the great saphenous vein, additional correction of the deep vein reflux provides no further effect.