Brian Steixner MD 在Twitter 上:"What is a normal penis size and girth? #Urology #MensHealthMonth #Penis @BJUIjournal http://t.co/TMb18EDErm http://t.co/CAULzk4Ong" / Twitter
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The Problem with My Normal Penis | Book by Obioma Ugoala | Official Publisher Page | Simon & Schuster UK
Jon Rees 在Twitter 上:"10,700 men in study of normal penis size @BJUIjournal - 9.2cm flaccid, 13.1cm erect http://t.co/S20hvXhoAW http://t.co/KZzKRlAIwL" / Twitter
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