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T
measurement from two spectra. Spectrum A is the Mss,PCr measurement (same as spectrum B3 in Fig. A2). Spectrum B was acquired with ATP-γ continuously saturated and relatively shorter TR (TR = 1.4 s, nt = 512). Total acquisition times for spectra A and B were 11.7 and 11.9 min, respectively. T
is calculated using Eq. 10: T
= −TR/ln(1 − MTR,PCr/Mss,PCr).
