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SOX-2 and Oct immunohistochemical staining in early-stage endometrial adenocarcinoma (EAC) quantified as low (+), moderate (++) or strong (+++) staining in low-grade (G1), moderate-grade (G2) and high-grade (G3) tumours. A1: G1. SOX-2 (+) nuclear staining; A2: G2. SOX-2 (++) nuclear staining; A3: G3. SOX-2 (+++) nuclear staining. B1: G1. Oct4 (+) nuclear staining; B2: G2. Oct4 (++) nuclear staining; B3: G3. Oct4 (+++) nuclear staining.
