A study of 930 women in San Francisco showed that of those
who had been incestuously abused, 95% of the abuse had been
perpetrated by a male relative-usually the father or uncle.
    -Russell D. the Secret Trauma, Basic Books, 1986
   
A study of sexual-abuse offenders concluded that a
heterosexual adult is more likely to be a threat to children than a homosexual adult. Groth AN, Men Who Rape, Plenum Press NY. 1979