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Published on 17 Nov 2014 | over 2 years ago

Human penis part 10
Phases of erection ( Physiology of erection ) and erectile dysfunction which is 4.5 times higher in men of US than the men of other nations of the world.Impotence is curable condition and 70 to 80% is due to vasculogenic and diabetes. In psychogenic impotence NPT is present while it's absent in physical diseases.
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