Validation Log 2025-10-12 09:20:05.043013 mwtab Python Library Version: 1.2.5 Source: https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN006980/mwtab/json Study ID: ST004198 Analysis ID: AN006980 File format: json Status: Contains Validation Errors Number Errors: 1 Error Log: SUBJECT: Contains item "GENDER" with null value.