-Hydroxyisovalerylshikonin Inhibits the Cell Growth of Various Cancer Cell Lines and Induces Apoptosis in Leukemia HL-60 Cells through a Mechanism Different from Those of Fas and EtoposideSeiichi Hashimoto, Kazuyasu Nakaya, Toshihiro Aiuchi et al.|The Journal of Biochemistry|1999Cited by 62