The United States' largest doctors' group has agreed to join efforts to repeal the military's 'don't ask, don't tell' policy.

The American Medical Association also voted to declare that gay marriage bans contribute to health disparities for gay couples and their children.

Both gay-rights policies were adopted Tuesday at the AMA's interim policy meeting in Houston.

The AMA says the 'don't ask, don't-tell' law creates an ethical dilemma for gay service members and the doctors who treat them.

The other measure declares that marriage bans leave gays vulnerable to being excluded from health care benefits, including health insurance and family and medical leave rights. The new AMA policy stops short of opposing the bans.