Comparative analysis of Ligusticum chuanxiong from Gansu and Sichuan using the fingerprint technique and HS-SPME-GC-MS combined with chemometric analysis - Jialing Zhang; Juanjuan Liu; Yiyang Chen; Liangcai Wang; Ke Li; Gonghan Tu; Xiaohui Ma; Ling Jin (PLoS ONE, 2026)