RT Journal Article SR Electronic T1 Challenges of Using MR Spectroscopy to Detect Neural Progenitor Cells In Vivo JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1557 A1 Dong, Z. A1 Dreher, W. A1 Leibfritz, D. A1 Peterson, B.S. YR 2009 UL http://www.ajnr.org/content/early/2009/04/08/ajnr.A1557.abstract AB