January 13, 2009 11:52 am Ovarian Cancer Tests Doctors are working to create a pap-smear like, early-detection test for ovarian cancer. US & World Videos 2:35 World-renowned ballerina Michaela DePrince dies at age 29 1:39 Groundbreaking ballet dancer Michaela DePrince dead at 29 2:36 5 myths about Hispanic household wealth debunked 1:47 ‘Trying at times': Stranded astronauts discuss sending Boeing Starliner home without them 0:38 WATCH: Train collides with 18-wheeler carrying a tank