Spectroscopic study on interaction of quercitrin with human serum albumin Spectroscopic study on interaction of quercitrin with human serum albumin Chemical constituents in hypoglycemic active fraction in leaves of Myrica rubra Chemical constituents in hypoglycemic active fraction in leaves of Myrica rubra Immunofluorescence Localization of Centrin and Tubulin during Spermatogenesis of Ceratopteris thalictroides Flavonoids from Urena lobata Studies on the Chemical Constituents from Myristica yunnanensis Y. H. Li Chemical constituents from aereal parts of Symplocos chinensis