Examlex
Which of the following treatments is NOT currently used in the treatment of erectile dysfunction?
Net Energy
The difference between the energy expended to harvest an energy source and the amount of energy gained from that harvest.
Ozone
A molecule made of three oxygen atoms, significant in the stratosphere where it protects life by absorbing harmful ultraviolet radiation.
Hydrogen Gas
A colorless, odorless, and highly flammable gas, the lightest and most abundant element in the universe, used in various industrial processes.
Biomass
Organic material derived from plants and animals, which can be used as a renewable energy source.
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