Figure 5 Mucosal samples. The photographs in the far-left, center, and far-right columns were taken at magnifications of ×100 (scale bars indicating 500 µm), ×200 (100 µm), and ×700 (100 µm), respectively. The nasal cavity is located at the top of each image. Abbr: G, glands; N, peripheral nerve; V, blood vessel.