* "Porn: When It Helps & When It Hurts". Retrieved on 2008-10-08. "“For some people, porn can be a serious problem that devastates their lives,” explains Wendy Maltz, a sex therapist in Eugene, OR, and the co-author (with her husband Larry) of The Porn Trap: The Essential Guide to Overcoming Problems Caused by Pornography. “Eight to fifteen percent of people use porn have extremely serious sexual problems,” she says."