| http://www.w3.org/ns/prov#value | - Problems of tumor formation, uncontrollability, and genetic instability are now cited among the reasons why embryonic stem cells cannot safely be used in human trials any time in the foreseeable future.28 At the same time, non-embryonic stem cells have moved quickly into promising clinical trials for a wide array of conditions, including spinal cord injury, multiple sclerosis, Parkinson's disease,
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