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So I see on this site tools and surgeries etc and things to increase penis size and etc etc...but what about the manual exercises that guys swear by that it works. All the exercises like at www.PEgym.com have there been any studies at all on manual enlargement in girth and length by doing these frequently. I'm looking for scientific studies not hearsay there must be something out there on the subject...maybe I've missed it elsewhere. Thanks.