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. 2017 May 19;45(Web Server issue):W162–W170. doi: 10.1093/nar/gkx449

Figure 1.

Figure 1.

The general workflow of NOREVA. (A) Uploading of mass spectrometry (MS)-based metabolomics data with or without IS, QCM and quality control sample (QCS); (B) Data pre-processing by QC-RLSC and imputation of missing signals; (C) Data normalization based on the studied methods; (D) Performance evaluation by multiple criteria.