Mixed Results for Combo Treatments for Erectile Dysfunction

One combination was effective in severe ED, but another was not for milder ED

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United States , Munich , Bayern , Germany , Massachusetts , American , David Velazquez , Mike Bassett , Nikolaos Pyrgidis , University Of Chicago Pritzker School Medicine , International Index Of Erectile Function , American Urological Association , University Hospital , European Association Of Urology , Chicago Pritzker School , American Urological , International Index , Erectile Function , European Association ,