Cover: Localization of basigin mRNA in murine adult testis and lung. Shown are paired brightfield (A, C, E, and G) and darkfield (B, D, F, and H) views of testis or lung sections hybridized in situ for basigin mRNA (original magnification: ×100). Normal testis (A, B) shows strong signals. No signal is detected in the normal lung (C, D). At 7 d (E, F) and 14 d (G, H) after bleomycin instillation, basigin mRNA is evident in airway and alveolar epithelium. Controls using a sense probe demonstrated minimal hybridization in all samples (not shown). For more information see article by Betsuyaku and colleagues beginning on page 600.