The study is sponsored by the  and six
six other institutes, centers, and offices of the
including:

• National Institute of Diabetes and Digestive and Kidney Diseases
• National Institute of Neurological Disorders and Stroke
• National Institute of Deafness and Other Communication Disorders
• National Institute of Dental and Craniofacial Research
• National Center on Minority Health and Health Disparities
• National Institutes of Health Office of Dietary Supplements