Figure 1
From: Tissue factor expression as a possible determinant of thromboembolism in ovarian cancer
Immunohistochemical staining of tissue factor in ovarian carcinoma tissues. (A) Negative control, (−); (B) weakly positive (<50% positive tumour cells), (+); (C) moderately positive (⩾50% positive tumour cells with weak intensity), (++); (D) strongly positive (⩾50% positive tumour cells with strong intensity), (+++), based on the proportion of the entire tumour cell population positive for TF. All pictures were taken at original magnification × 200.
