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(a,b) Flow‐mediated dilatation (FMD) in the right brachial artery in diabetic patients with and without erectile dysfunction (ED). The patients were subgrouped into two groups by progression of autonomic neuropathy. (c,d) Alterations in bone marrow‐derived endothelial progenitor cells before and after the cardiopulmonary exercise stress test in diabetic patients with and without ED. Values are means ± SEM. The numbers of patients are shown in brackets.
