highly significantP < 0.0001
A highly significant linear association ( r 2 = 0.9738; P < 0.0001) was found, and Bland–Altman analysis showed no concentration-dependent and systematic differences between our and other LC-MS methods (Fig. 5b ).
A highly significant linear association ( r 2 = 0.9738; P < 0.0001) was found, and Bland–Altman analysis showed no concentration-dependent and systematic differences between our and other LC-MS methods (Fig. 5b ).