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Immunohistochemical staining of survivin in p-stage I lung carcinomas: (A) Nuclear and cytoplasmic expression in adenocarcinoma (x40 magnification); (B) nuclear expression in squamous cell carcinoma (x20 magnification); (C) nuclear expression in small cell carcinoma (x20 magnification); (D) nuclear expression in large cell neuroendocrine carcinoma (x20 magnification).
