With DOMA on the books state laws allowing same-sex marriage are of limited use.

FORBES: Gay Marriage Scores Victories In All Four States That Considered It, But Tough Road Lies Ahead

But he admits that his findings have limited value, because they rely entirely on self-reports, which are notoriously unreliable about sex, and did not examine a true cross-section of humanity.

NEWYORKER: It Ain??t Necessarily So