The occurrence of cortical bone atrophy in old age and in osteoporosis.
D000368:Aged; D000369:Aged, 80 and over; D001284:Atrophy; D001842:Bone and Bones; D006801:Humans; D010024:Osteoporosis / Q000473:pathology*
BONE AND BONES/in old age; OSTEOPOROSIS/pathology