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RT-PCR Agarose Gel of EGFR cDNA in Ishikawa H and Hec50co Cells. A) Band corresponds to EGFR exons 18-22, 540 bp in size, in Hec50co and Ishikawa H cells. B) Bands correspond to extracellular and intracellular domains of EGFR well as sEGFR isoforms B, C, and D.
