The Thing Metabolome Repository family (XMRs): comparable untargeted metabolome databases for analyzing sample-specific unknown metabolites. - Nozomu Sakurai; Shinichi Yamazaki; Kunihiro Suda; Ai Hosoki; Nayumi Akimoto; Haruya Takahashi; Daisuke Shibata; Yuichi Aoki (Nucleic Acids Res., 2023)