Affiliation: | XU Ya-Ming1,Maria del C.Ramirez-Ahumada1,Frederick A.Valeriote2,A.A.Leslie Gunatilaka1 Southwest Center for Natural Products Research and Commercialization,School of Natural Resources and the Environment,The University of Arizona,250 E Valencia Road,Tucson,Arizona 85706-6800,USA,2Division of Hematology & Oncology,Henry Ford Hospital,Detroit,Michigan 48202 |