KDR and ulcer disease: Thus, although there were no differences in all EPC measurements at baseline, patients who healed their ulcers had lower CD34+KDR+ counts at visits 3 and 4 (Figure 2B, p<0.05), marginally lower CD34+ at visit 3 (Figure 1A, p=0.062) and CD34+CD133+ at visit 4 (Fig, 2C, p=0.066).