- Haan, Mary;
- Witt, CM;
- Aickin, M;
- Baca, T;
- Cherkin, D;
- Haan, MN;
- Hammerschlag, R;
- Hao, JJ;
- Kaplan, GA;
- Lao, L;
- McKay, T
Background: There is a need for more Comparative Effectiveness Research (CER) to strengthen the evidence base for clinical and policy decision-making. Effectiveness Guidance Documents (EGD) are targeted to clinical researchers. The aim of this EGD is to pr
