Cover: The undecalcified tibia of 4-month-old wild-type mice were embedded in plastic resin, sectioned at 2 microns and stained
with silver nitrate to detect mineralized trabecular bone tissue, shown in black. A toluidine blue counterstain was used to identify
bone marrow cells and osteocytes, which can be seen embedded in the bony trabeculae. See Article by Valverde-Franco et al., in this issue, pp.271–284.
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