In 2004, there were 13,000 cases of sexual abuse and incest, according to sexologists Martha Diaz, Carmen Maria Castillo and Milly Perez, who is director of the National Institute of Sexual Education. In 2003, there were 16,000 cases of incest and sexual abuse a year in the Dominican Republic. The sex experts urge that more of the victims be able to participate in group therapy to get over the resulting traumas. They say the women should not be treaty individually, but in groups. They estimate that 40% of the victims do not receive therapy or adequate treatment and could be affected by psychological problems throughout their lives. They say these victims have a high likelihood of becoming prostitutes, and stress the importance of group therapy so the victims can socialize with others who have survived similar situations, thus alleviating the burden when they understand that others share their same problem. Data from the National District prosecution office establishes that in most of the cases of incest a father or close relative is involved.