Positron Tomography and Nuclear Magnetic Resonance Imaging

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May 9, 2002 - sian, ibid. 21, 1095 (1980); R. .... sian. Am. J. Physiol. 228. 1936 (1975); M. E.. Raichle, M. J. Welch. R. L. Grubb. .... Hoult, S. J. W. Busby.