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Patient derived lung tumor was implanted into SRG rats. A) Tumor growth curve shows multiple passages of the patient derived lung tumor from one patient and subsequent passages in the SRG rat. P1 is the initial passage in vivo in SRG rats. B) IHC staining for H&E, P40, and TTF1 in original patient tumor sample (3010), passage 1 of the same sample in SRG rat, and passage 2 of the same sample in SRG rat.
