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Chen IS, Chen HF, Cheng MJ, Chang YL, Teng CM, Tsutomu I, Chen JJ, Tsai IL.Chen IS, et al. Among authors: cheng mj.J Nat Prod. 2001 Sep;64(9):1143-7. doi: 10.1021/np010122k.J Nat Prod. 2001.PMID: 11575945