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ProNGF immunostaining of thyroid cancer lymph node metastasis, compared with paired primary tumour. (A) Papillary thyroid cancer metastasis, h-score 148. (B) Primary tumour of A, h-score 56. (C) Papillary thyroid cancer metastasis, h-score 154. (D) Primary tumour of C, h-score 71. (E) Follicular thyroid cancer metastasis, h-score 60. (F) Primary tumour of F, h-score 60. Scale bar: 100 µm. 20× magnification.
