Figure 1: Effects of calcium and vitamin D deficiency [CaD(−); dotted line] on bone mineral density (BMD, (a)), calcium retention (b), and urinary excretion of phosphorus, (c), compared with a control group (C; solid line). Values are changes from baseline 0, with baseline values assigned to zero. Means and SEM, . Significantly different from the controls at a given time: (trend); . Significantly different from baseline: ; ; .