Progress in studies on mechanism of promoting blood circulation and removing blood stasis of 3,4-dihydroxyacetophenone Studies on organosulfur compounds of Allium sativum Secondary metabolites of endophytic Guignardia mangiferae from Smilax glabra and their antitumor activities A new triterpene in rhizome of Alisma orientale Chemical constituents of Ledum palustre (Ⅰ) Research on quality control method for Juhuang Oral Liquid A new sesquiterpene from Dendrobium nobile