Figure 3.

Development of the Asthma Comparative Effectiveness Research Database (ACER). Data will be collected from 8 sources into the database including: Billing data, clinical data drawn electronically from the EMR, School data, Information collected by the school-based intervention, Medicaid data, clinic data via chart abstraction from control practices without an EMR, Patient level data from surveys and community-level data from the Center for Metropolitan Studies.

Tapp et al. BMC Health Services Research 2011 11:188   doi:10.1186/1472-6963-11-188
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