Purkinje Grafts: How long a wait?

[Janet]

Would any of you neuroscientists care to venture a guess as to how long
it will be before fetal tissue neural grafts of Purkinje cells are
attempted in humans, i.e. cancer survivors with damage as a result of
paraneoplastic syndrome, ataxic patients with cell loss due to toxic
exposure, etc.? Is it reasonable to expect they will ever be performed
on humans?

Just wondering,

Janet