Analysis of the combined results of QIP-MS and NGF or SPEP/IFE (and free light chains). (A) Concordances and discordances between QIP-MS and NGF at each preestablished treatment time point. P value has been calculated by Fisher exact test. (B) Concordances and discordances between QIP-MS and SPEP/IFE and free light chains at each preestablished treatment time point. (C) Concordances and discordances between QIP-MS and NGF by log range of MRD independently of the treatment time point. The percentages inside the bars have been calculated considering each of them independently.