Cichewicz, Robert H Inhibition of human tumor cell proliferation by novel anthraquinones from daylilies. [electronic resource] - Life sciences Feb 2004 - 1791-9 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0024-3205 Standard No.: 10.1016/j.lfs.2003.08.034 doi Subjects--Topical Terms: Anthraquinones--isolation & purificationAntineoplastic Agents--isolation & purificationAscorbic Acid--pharmacologyCell Division--drug effectsCell Line, TumorCell Survival--drug effectsDrug CombinationsDrug Screening Assays, AntitumorHemerocallis--chemistryHumansNeoplasms--pathologyPlant Extracts--isolation & purificationVitamin E--pharmacology