Methods The upper end of tibia,lower end of humerus,and cancellous bone of upper end of humerus of a New Zealand rabbit were taken out to make bars of DPB.

• 方法用胎兔颅骨培养的成骨细胞与兔干骺端松质骨制成的脱蛋白骨体外复合培养,通过酶消化法、倒置显微镜及扫描电镜观察其生长情况。