Sure. What I'd like to comment on is that what we do know is that from the very extensive Centers for Disease Control biomonitoring program, they have now analyzed well over 100 compounds in both human blood and urine. The preamble to their report states that the presence of a compound does not necessarily mean a diseased state.
The phthalates panel has looked at the action of phthalates as a possible adjuvant to causing allergic reactions. We know that it doesn't have that effect in animals. We know that the national toxicology program has done some work with two phthalates and has found them to be not additive, so there is evidence there to show that phthalates don't interact with other compounds and that they're not additive together.
Additionally, as Marion Axsmith pointed out, they have about a 24-hour transit time in the body and then they are expelled in the urine.