And there are methods that have been employed that have a similar outcome/effect. For example, the Jackal's more advanced cloning technology, hereby dubbed "reanimation," which was the epicenter of The Clone Conspiracy and later incorporated the Inheritors' cloning tech that also enabled the mind/soul/spirit to transfer into a healthy new body upon the death or incapacitation of the old/original body. Then there's the Starks' "biological reboot" technology, which may have technically turned out to create a perfectly functional clone instead of really reviving the original person, but still.