The molecular biological mechanism of acquired resistance of pancreatic cancer cells to pemetrexed
YAN Wei,SHI Xin,GE Zi,XIAO Zhi,YANG Zhengping,YANG Jun
Journal of Practical Oncology . 2009, (2): 106 -109 .  DOI: 10.3969/j.issn.1002-3070.2009.02.002