Keywords
according achieved active adjusted aligned around atoms back basis begin behavior besides biological called caused choice clinical clinicians commonly component considerably constant contrast contrasts decay deepen density describing description developers differ differential dipoles disturbed drive driving elegant embodies energy engineers entirely equation equations equilibrium evoked evolution excellent exchange excitation exciting exhibits experimental explanation exponential external field fields finding flexible fluctuations forms formulation free frequency function gamma governed grade gradient hospital immediately incorporated induction inhomogeneities initial initially interact interactions interfaces internal intrinsic introduced latter lattice like local longitudinal macroscopic magnetization magnitude manner measured mechanisms molecules motion muscle necessary nuclear objectives omega oscillating outcome overview periods perturbation phenomena phenomenological physical physicists pound predicted presentation process protocol proton pulse pure quantitative reliably represents review scanner short simulated smaller solutions spectroscopy spin spins static substantially susceptibility system target temporal terms theory tissues towards transversal transverse true typical typically ultimately underlying understanding usually want water whole
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