|Premature Ejaculation (PE) is one of the utmost common sexual dysfunctions, affecting 20%-40% of sexually active men. There were many definitions of PE by different professional organizations. However, since the underlying physiopathology of PE was not well agreed, there was no universally recognized definition of PE until the International Society for Sexual Medicine (ISSM) established the first evidence-based definition of lifelong PE in 2007
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