<i>In vivo</i> magnetic resonance vascular imaging using laser-polarized <sup>3</sup> He microbubblesMark S. Chawla, G. Allan Johnson, Gary P. Cofer et al.|Proceedings of the National Academy of Sciences|1998Cited by 33
Magnetic resonance imaging of hyperpolarized Xe129 produced by spin exchange with diode-laser pumped CsD. Levron, G. Allan Johnson, Gary P. Cofer et al.|Applied Physics Letters|1998Cited by 21
Hyperpolarized <sup>3</sup>He NMR Lineshape Measurements in the Live Guinea Pig LungX. Josette Chen, G. Allan Johnson, Mark S. Chawla et al.|Magnetic Resonance in Medicine|1998Cited by 21