According to a press release (21 December 2001), the American Society for Neural Transplantation and Repair (ASNTR) has issued a set of recommended guidelines "promoting ethical and rigorous research on investigational treatments for brain repair. "
The "Considerations and Guidelines for Studies of Human Subjects" was published in the 24 December 2001 issue of the journal Cell Transplantation. The guidelines were endorsed by the society's full membership, which includes most of the world's researchers working on applications of fetal tissue, stem cells and gene therapy for brain repair.