Stephen B. Soumerai and Ross Koppel
Stephen Soumerai is Professor of Population Medicine and research methods at Harvard Medical School and the Harvard Pilgrim Health Care Institute.
Ross Koppel teaches research methods and statistics in the Sociology department at the University of Pennsylvania, conducts research on healthcare IT, and is a Senior Fellow at the Wharton School’s Leonard Davis Institute of Health Economics.
Latest articles by Stephen B. Soumerai and Ross Koppel


It can even lead doctors to shun treating the sickest patients.