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Activation of Pax7-positive cells in S. macrurus near amputation site. Portions of a longitudinal cryosection (20 mm thick) from 7-day blastema co-labeled with anti-Pax7 (red) and anti-laminin (green) antibodies. White line shows the site of tail amputation. Abbreviations: EC, electrocyte; Ep, epithelium; m, muscle fiber.
