Correction

Improving Protection for Research Subjects

N Engl J Med 2002; 346:1838June 6, 2002

Article

Improving Protection for Research Subjects (Health Policy Report, N Engl J Med 2002:346;1425 - 1430) . Reference 19 should have read as follows: “La Mantia C. Final report for adverse event investigation involving protocol entitled Methionine and Homocysteine Metabolism in Alzheimer's Disease Patients and Controls: letter to the Office for Human Research Protections, Department of Health and Human Services. Cleveland: Case Western Reserve University and University Hospitals of Cleveland, August 7, 2001.” We regret the error.