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Immunohistochemical staining for RNase 7 in non-inflamed salivary glands. Positive immunostaining was observed in the serous cells of parotid glands (a) and (b). Negative control showed negative staining (insets of a). Weak staining of RNase 7 in duct cells of sublingual glands in (c) and (d). Positive immunoreaction was observed in serous demilune and faint staining in duct cells of labial glands (e) and (f). Bars = 100 μm (a, c & e); 100 μm insets of (a); 10 μm (b, d & f).
