Goffeney N, Bulte J W, Duyn J, Bryant L H, van Zijl P C
Department of Radiology, School of Medicine, Johns Hopkins University, 217 Traylor Building, 720 Rutland Avenue, Baltimore, MD 21205, USA.
J Am Chem Soc. 2001 Sep 5;123(35):8628-9. doi: 10.1021/ja0158455.