Validation Log 2024-12-01 04:39:04.971472 mwtab Python Library Version: 1.2.5 Source: https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN003285/mwtab/json Study ID: ST002016 Analysis ID: AN003285 File format: json Status: Contains Validation Errors Number Errors: 1 Error Log: SUBJECT_SAMPLE_FACTORS: Section missing sample ID(s) {'Blank_1_NEG', 'Blank_2_NEG'} found in MS_METABOLITE_DATA section.