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Copy Number Amplification of the PIK3CA Gene Is Associated with Poor Prognosis in Non-lymph node metastatic Head and Neck Squamous Cell Carcinoma

Toshihito Suda, Takanori Hama*, Shu Kondo, Yuki Yuza, Mamoru Yoshikawa, Mitsuyoshi Urashima, Takakuni Kato and Hiroshi Moriyama

BMC Cancer 2012, 12:416  doi:10.1186/1471-2407-12-416

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