Effects of component combination in Siwu Decoction on proliferation of human bone marrow stromal cell lines HFCL and hematopoiesis-related gene expression Relaxation of Danhong Injection in vascular smooth muscle cells in co-culture system and study on its mechanism The Ultracytochemical Localization of ATPase Activity in the Ovules of Sunflower ULTRASTRUCTURAL INVESTIGATION OF THE INTERCELLULAR CYTOMICTIC CHANNEL IN MICROSPOROCYTES OF HIGHER PLANTS