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Cryonics (often mistakenly called "cryogenics") is the practice of cryopreserving humans or animals that can no longer be sustained by contemporary medicine until resuscitation may be possible in the future. The process is not currently reversible, and by law can only be performed on humans after legal death. Please see cryonics for more information. The Wikipedia entries related to cryonics have typically been miscategorized as cryogenics, and the same mistake has been made for cryobiology.