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Li, C. Y; Xu, H. X; Han, Q. B; Wu, T. S (2009). "Quality assessment of Radix Codonopsis by quantitative nuclear magnetic resonance". Journal of Chromatography A. 1216 (11): 2124–9. doi:10.1016/j.chroma.2008.10.080. PMID19004445.
Wang, Z.-T.; Du, Q.; Xu, G.-J.; Wang, R.-J.; Fu, D.-Z.; Ng, T.-B. (1997). "Investigations on the Protective Action of Condonopsis pilosula (Dangshen) Extract on Experimentally-Induced Gastric Ulcer in Rats". General Pharmacology: The Vascular System. 28 (3): 469–473. doi:10.1016/s0306-3623(96)00047-x. PMID9068993.