1. Child Study Center, Yale School of Medicine, Yale University, New Haven, Connecticut.
2. Columbia University in the City of New York, Columbia School of Nursing, New York, New York.
3. Albert Einstein College of Medicine, Bronx, New York.
4. Women and Infants Hospital, Providence, Rhode Island.
5. Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hanover, Germany.
6. Department of Psychology, Yale College, New Haven, Connecticut.
7. Department of Psychiatry, Yale School of Medicine, Yale University, New Haven, Connecticut.