01004oas 2200325 a 450 991069570300332120070502083519.0(CKB)5470000002372756(OCoLC)123911817(EXLCZ)99547000000237275620070502b19991999 sa engurmn|||||||||txtrdacontentcrdamediacrrdacarrierCurrent directions and evolving strategies[electronic resource]Research Triangle Park, N.C. National Toxicology Program, U.S. Dept. of Health and Human Services[1999]HTML fileTitle from title screen (viewed on May 1, 2007).BackgroundToxicologyUnited StatesPeriodicalsToxicologyGPOGPOGPODOCUMENT9910695703003321Current directions and evolving strategies3108592UNINA