Additional file 1: of An integrative metabolomics and transcriptomics study to identify metabolic alterations in aged skin of humans in vivo

Details on epidermal tissue donors. x indicates that sample were included in metabolomics, transcriptomic or the integrated analysis, respectively. (XLSX 15 kb)表皮组织供体相关详细信息。x分别代表该样本被纳入代谢组学（metabolomics）、转录组学（transcriptomic）或整合分析（integrated analysis）。（XLSX 15 kb）