Figure 2From: Bone turnover in passive smoking female rat: relationships to change in bone mineral density Bone mineral density of the lumbar vertebrae and femur in the controls, 2-month, 3-month and 4-month smoke-exposed rats. Bone mineral density of the lumbar vertebrae and femur in the 4-month smoke-exposed rats was significantly lower than that in controls. Mean ± SD (n = 8 in each group). *p < 0.05 compared to controls.Back to article page