Purification and Partial Structural Characterization of a Complement Fixating Polysaccharide from Rhizomes of Ligusticum chuanxiong oleh Yuan-Feng Zou, Yu-Ping Fu, Xing-Fu Chen, Ingvild Austarheim, Kari Tvete Inngjerdingen, Chao Huang, Lemlem Dugassa Eticha, Xu Song, Lixia Li, Bin Feng, Chang-Liang He, Zhong-Qiong Yin, Berit Smestad Paulsen