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The PstI/RsaI and DraI polymorphisms of CYP2E1 and head and neck cancer risk: a meta-analysis based on 21 case-control studies

Kefu Tang, Yang Li, Zhao Zhang, Yunmin Gu, Yuyu Xiong, Guoyin Feng, Lin He* and Shengying Qin*

BMC Cancer 2010, 10:575  doi:10.1186/1471-2407-10-575

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