Information of indentified metabolites in metabolomic analysis and summary of the major mass-spectrometry-based studies performed on the syphilis patients or neurosyphilis patients to date

Supplementary Table S1. Information of indentified metabolites in metabolomic analysis. 
Supplementary Table S2. Summary of the major mass-spectrometry-based studies performed on the syphilis patients or neurosyphilis patients to date. Table includes details about the numbers of sample, the analysis method, and the type of mass spectrometer used and biomarkers identified in previous study.eng