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International Journal of Radiation Oncology, Biology, Physics > 2009 > 75 > 2 > 364-368
Journal of Gastrointestinal Surgery > 2004 > 8 > 7 > 775-784
International Journal of Radiation Oncology, Biology, Physics > 1998 > 41 > 2 > 371-377
Lung Cancer > 1996 > 14 > 1 > 99-107