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  Indian J Med Microbiol
 

Figure 2: Immunohistochemistry staining of biopsy specimen from right lung mass showing positive staining for thyroid transcription factor 1 (a) and cytokeratin 7 (b)

Figure 2: Immunohistochemistry staining of biopsy specimen from right lung mass showing positive staining for thyroid transcription factor 1 (a) and cytokeratin 7 (b)