Inhibition Effect of Betulin on Oesophageal Cancer EC109 Cell Line
CAI Wei-jia, MA Yun-qing, QI Yi-mei, NIU Yong-dong, XU Li-yan, LI Jian-xin, , LI En-min
Carcinogenesis, Teratogenesis & Mutagenesis . 2006, (1): 16 -018 .  DOI: 10.3969/j.issn.1004-616x.2006.01.005