Fig. 1From: Expression of importin-α isoforms in human nasal mucosa: implication for adaptation of avian influenza A viruses to human hostImmunofluorescence staining of nasal mucosae samples (20×). Double immunofluorescence staining was performed by using anti-human cytokeratin antibody (a) to detect the proportion of epithelial cells and Hoechst (b) for nuclear detectionBack to article page