Strontium alters the hematologic pattern in the BM. BM cells were isolated from control mice and mice that had been treated with Sr for 4, 6, 8, and 12 weeks and were assessed for the CFU-C frequency that identifies the hematopoietic progenitors (n = 12) (A) (*** P < .001) and the LTC-IC frequency that represents the frequency of the functional HSC (n = 8 per group) (B). Values shown are the mean (± SEM).