61 Essays on Infinite Lifespans   João Pedro de Magalhães 26) Orlic, D & Kajstura, J & Chimenti, S & Jakoniuk, I & Anderson, SM & Li, B & Pickel, J & McKay, R & Nadal- Ginard, B & Bodine, DM & et al; “Bone marrow cells regenerate infarcted myocardium” in: Nature (2001, Vol. 410); pg.701– 27) Bjorklund, A & Lindvall, O; “Self-repair in the brain” in: Nature (2000, Vol. 405); pg.892– 28) Liu, S & Qu, Y & Stewart, TJ & Howard, MJ &   Chakrabortty, S & Holekamp, TF & McDonald, JW; “Embryonic stem cells differentiate into oligodendrocytes and myelinate in culture and after spinal cord transplanta- tion” in: Proceedings of the National Academy of Sciences of the United States of America. (2000, Vol. 97); pg.6126– 29) Horwitz, EM & Prockop, DJ & Fitzpatrick, LA & Koo, WW & Gordon, PL & Neel, M & Sussman, M & Orchard, P & Marx, JC & Pyeritz, RE & et al.; “Transplantability and therapeutic effects of bone marrow-derived mesenchymal cells in children with osteogenesis imperfecta” in: Nature Medicine (1999, Vol. 5); pg.309– 30) http://www.foresight.org/Nanomedicine/Ch03_ 1.html#Tab0301 31) Feynman, R 1959, “There’s Plenty of Room at the Bottom: An invitation to Enter a New Field of Physics”, talk at the Annual Meeting of the American Physical Society, 29 December 1959 32) Freitas, R; Nanomedicine; Biocompatibility (2003, Vol. IIA); Landes Bioscience