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Second Stricture. A1, A2: Cross-sectional area, endoscopic, 3D CT (205.7 mm2, 204.9 mm2). B1, B2: Vertical midline diameter, endoscopic, 3D CT (14.8 mm, 14.2 mm). C1, C2: Horizontal midline diameter, endoscopic, 3D CT (15.6 mm, 15.6 mm). Fields of view = 1.
