Inhibition of nucleic acid synthesis in P-388 lymphocytic leukemia tumor cells by helenalin and bis(helenalinyl)malonate in vivo. - Williams Jr ,W.L,.; Hall ,I.H,.; Grippo ,A.A,.; Oswald ,C.B,.; Lee ,K.H,.; Holbrook ,D.J,.; Chaney ,S.G.. (Journal of Pharmaceutical Sciences, 1988)