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Conventional bone biopsy and morphometry. Bone marrow biopsy specimens from patients of different ages (n > 20/group) were collected for Wright staining. The amount of each tissue was checked using a morphometric software. The histogram shows the results of the morphometric measurements. (a) <25 years old group; (b) 25–35 years old group; (c) 35–45 years old group; (d) 45–55 years old group; (e) 55–65 years old group; and (f) >65 years old group.
