i think it's a useful tool but i have limitations to it. what is preeclampsia. you develop headaches and blurry vision and protein pouring out of your urine and high blood pressure. what the test is designed to do to see those hospitalized with high blood pressure, who to pay most attention to? the head of maternal feet all medicine at nyu. she says if you think the test is negative we'll stop paying attention after we've hospitalized somebody for high blood pressure? that's a good clinical pearl. of course she have is right. the other point that's huge is the black population suffers from preeclampsia the most. who will cover this? insurance doesn't cover these kind of tools and medicaid doesn't cover them. so clinical vigilance is number one. this is a useful tool if we can get it. the last point i want to make is