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Typical light and fluorescent microscopic observations of upper second molars from the wild-type and Bmal1−/− mice in DD. Decalcified sections and densitometric patterns from wild-type (A) and Bmal1−/− (C). Frozen sections from wild-type (B) and Bmal1−/− (D). Bars = 20 μm (A, C); 100 μm (B, D).
