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Transitional basal cells at the mouse squamo-columnar junction. The arrows point to transitional basal cells (p63+ Krt7+ Krt8-negative) located at the squamo-columnar junction. Note the neighboring squamous cells (p63+, Krt7-negative, Krt8-negative) on the left and the columnar gastric cells (p63-negative, Krt7-negative, Krt8+) on the right (see details in Jiang et al17).
