共 2 条
[1]
Investigation of plant origin and clarification for commercial medicinal materials named Xi-huangcao in Guangdong. Chen J N,Lai X P,Liu N. J Chin Med Mater(中药材) . 1996
[2]
Betulinic acid and dihydrobetulinic acid derivatives as potent anti-HIV agents. Kashiwada Y,Hashimoto F,Cosentino L M,et al. Journal of Medicinal Chemistry . 1996