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Large intestine sections of dogs naturally infected with Leishmania infantum. Compare distinct staining’s as Hematoxylin-Eosin (H&E), Toluidine Blue and Periodic Acid Schifft (PAS) in tissue samples embedding in glycol methacrylate (GMA) and paraffin. Scale bars: H&E) 16 µm; Toluidine Blue) 8 and 16 µm; PAS) 16 µm.
