Pluripotency of mesenchymal stem cells derived from adult marrow. - Jiang,Y.; Jahagirdar,B.N.; Reinhardt,R.L.; Schwartz,R.E.; Keene,C.D.; Oritz-Gonzalez,X.R.; Reyes,M.; Lenvik,T.; Lund,T.; Blackstad,M.; Du,J.; Aldrich,S.; et al. (Nature, 2002)