dxa bone density scan osteoporosis prevention german

40s adult age aged ageing aging bmd bone care chart column densitometry density dexa diagnosis diagram disease dxa examination female femur fracture german germany hip illustration images joint knochendichtemessung medical medicine middle mineral osteodensitometry osteopenia osteoporose osteoporosis prevention radiology result rheumatic rheumatology scan spinal table text thighbone woman xray