1. Spinal Injury Network. Accessed 29th July 2011, [ http://www.spinal-injury.net/treatment-of-spinal-cord-injury.htm ]
2. ClinicalTrials.gov. Search for: Trial ID: NCT01217008. Accessed 29th July 2011, [ http://www.clinicaltrials.gov ]
3. Geron Corporation: Information for patients, clinical trial details. Accessed 29th July 2011, [ http://www.geron.com/patients/clinicaltrials/hESC.aspx ]
4. Geron Corporation: Press Release 23/01/09 - Geron receives FDA clearance to begin World's first human clinical trial of embryonic stem cell-based therapy. Accessed 29th July 2011, [ http://www.geron.com/media/pressview.aspx?id=1148 ]
5. BBC News Online. Accessed 29th July 2011, [ http://news.bbc.co.uk/1/hi/health/7847450.stm ]