| Term | Definition | 
|---|---|
| Off-Label | 				 Off-Label use is when physicians treat their patients using treatments approved for other uses but not officially approved for use for their particular disorder. 
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| Oligodendrocyte | 				 A supporting cell that provides insulation to nerve cells by forming a myelin sheath (a fatty layer) around axons. Definition: National Institute of Health (http://stemcells.nih.gov/info/glossary.asp) 
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