1. Massachusetts General Hospital, Boston, Massachusetts (Dr Dyke)
2. University of Massachusetts Medical School, Worcester, Massachusetts (Mr McManus, and Dr Allison)
3. New York University Medical School, New York, New York (Dr Cuffee)
4. University of Alabama at Birmingham, Birmingham, Alabama (Dr Halanych)
5. Eunice Kennedy Shriver Center, Waltham, Massachusetts (Ms Curtin)