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Hematoxylin and eosin staining of cutaneous malignant melanoma (a) and lymph node metastase (c). See a strong and finely granular immunoreactivity of 14F7 Mab in cutaneous malignant melanoma (b) as well as, in lymph node metastases (d). The reaction was located on plasmatic membrane and cytoplasm. Black bar =100 μm.
