During Word War I, many were soldiers suffering from gas gangrene, and gunshot wounds were treated.

BBC: Llangollen community hospital

Caused by the bacterium Clostridium perfringens, gas gangrene is a particularly nasty condition.

ECONOMIST: A sick inventory

Hyperbaric oxygen therapy for gas gangrene generally lasts about 90 minutes.

CNN: Gangrene

Hyperbaric oxygen therapy may be used to treat gas gangrene.

CNN: Gangrene

Gas Alley, Gangrene Alley, Gory Trench.

NEWYORKER: Trench Names