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Molecular detection at the protein level. (A) Immunochemistry (IHC) analysis indicated the tumor sample being positive for anaplastic lymphoma kinase (ALK) (100×), using the D5F3 antibody (Ventana Medical Systems, Tucson, AZ, USA); (B) fluorescent in situ hybridization (FISH) detection of tumor tissue showed it was positive for ALK (1,000×).
