1. Wang Y, Lou Z. Study of Radix Gentianae Macrophyllae. Chin Pharm J. 1987;22:153–9.
2. Nie A, Lin Z, Wang Y, Zhang B. Study on chemical constituents and pharmacological action of gentiana gentiana macrophylla. Chin Trad Herb Drugs. 2017;48:597–608.
3. China Pharmacopoeia National Pharmacopoeia Committee, Beijing.
4. Wagner H, Bauer R, Melchart D, Xiao PG, Staudinger A. Chromatographic fingerprint analysis of herbal medicines Volume III. 中草药(英文版). 2011. pp. 137–46.
5. Shi D, Zhang J, Sun L. Necessity of the research on equal quantity based on the quality investigation of three multi-origin pieces. China J Trad Chin Med Pharm. 2018;33:320–4.