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Making Observational Studies Count: Shaping the Future of Comparative Effectiveness Research

Dreyer, Nancy A.

doi: 10.1097/EDE.0b013e3182126569
The Changing Face of Epidemiology

From Outcome Sciences Inc., Cambridge, MA.

Supported in part by the National Pharmaceutical Council.

Correspondence: Nancy A. Dreyer, Outcome Sciences Inc, 201 Broadway, Cambridge, MA 02139. E-mail:

Editors' note: Related articles appear on pages 290, 292, 298, and 302.

© 2011 Lippincott Williams & Wilkins, Inc.