from not inducing or augmenting a labor far outweigh the risks we've identified. what we've found is sort of an elevated risk in the induced and augmented mothers and, as you said, in boys, which is interesting for us because autism affects more males than females, but what we really need to do is work out where the association is coming from, what is the cause of this association and we're absolutely not recommending that where it's medically indicated that a woman decides against induction or augmentation. >> so we've done a number of stories about studies about possible links to what causes this disorder. a few months ago we talked to somebody who talked about possible environmental factors. where does your paper rank with other risk factors that doctors