Genotoxicity study of Cortex Fraxini decoction Toxicological assessment on safety of water and 70% ethanolic extracts of nearly ripe fruit of Evodia rutaecarpa Genotoxicity of cyclophsphamide on root tip cells of broad bean (Vicia faba) The study on genotoxicity of blue-green algae filtrate during blue-green algae fast growth in Lake Tai Application of SOS/umu in screening cytoprotectors of plants against mitomycin C-induced genotoxic damage Genotoxicity research thought and method on traditional Chinese medicine