National Institutes of Health Clinical Center, Bethesda, Maryland, United States
Westat, Inc., Rockville, Maryland, United States
National Human Genome Research Institute (NHGRI), Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Human Genome Research Institute (NHGRI), Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Human Genome Research Institute (NHGRI), Bethesda, Maryland, United States