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MRI phantoms and relaxivity determination from 1/T vs. Fe concentration curves for fuco-0.50 and CMD-0.50 samples, with CFe = 0.7(A), 0.303(B), 0.147(C), 0.113(D), 0.0774(E), 0.0522(F), and 0.0261(G) mM. For CMD-0.50, the plotted data are ranging from CFe = 0.303 mM (B) to 0.0261mM (G).
