Comment on

• Long-term correction of rat model of Parkinson's disease by gene therapy.

  Jiao S, Gurevich V, Wolff JA. Jiao S, et al. Nature. 1993 Apr 1;362(6419):450-3. doi: 10.1038/362450a0. Nature. 1993. Retraction in: Nature. 1996 Apr 25;380(6576):734. doi: 10.1038/380734a0. PMID: 8096625 Retracted.
• Repair of demyelinated lesions by transplantation of purified O-2A progenitor cells.

  Groves AK, Barnett SC, Franklin RJ, Crang AJ, Mayer M, Blakemore WF, Noble M. Groves AK, et al. Nature. 1993 Apr 1;362(6419):453-5. doi: 10.1038/362453a0. Nature. 1993. PMID: 8464477