They found him heavily bandaged and under treatment for severe frostbite.
The Russian Army lost about 10,000 and 2,000 more with severe frostbite out of 75,000.
Direct contact with liquid ethane can result in severe frostbite.
Liquid nitrogen is so cold that it can cause severe frostbite on contact with skin.
Some people staying outside with exposed skin, got severe frostbite or hypothermia.
By the time they were rescued, the climbers had suffered severe frostbite.
Numerous cases of severe frostbite and more than 40 deaths have been reported among those who managed to make it across the pass.
David had no gloves and severe frostbite at this time.
All were rescued, although one team member suffered severe frostbite.
Both lost multiple fingers and toes as a result of severe frostbite.