Comparison with differentiation of Ligusticum chuanxiong from its easily confusable Ligusticum sinense chaxiong Species and quality of geo-authentic Ligusticum chuanxiong in Sichuan Province Water extraction coupling rectification for isolating volatile oils of Ligusticum chuanxiong Hort Chemical constituents from Guanxinning Injection Preparation of ligustilide from rhizome of Ligusticum chuan xiong Study on degradation products of senkyunolide A and senkyunolide I Study on degradation products of senkyunolide A and senkyunolide I Studies on chemical constituents of Ligusticum chuanxiong Effect of extracts of Ligusticum chuanxiong and Angelica sinensis on MAPK pathway and cycle proteins in vascular smooth muscle cells Polysaccharides from Ligusticum chuanxiong Pharmacokinetics of ligustilide in Ligusticum chuanxiong essential oil in rats in vivo