Flowchart showing the number of web pages identified for each category

<p><b>Copyright information:</b></p><p>Taken from "Portals to Wonderland: Health portals lead to confusing information about the effects of health care"</p><p>BMC Medical Informatics and Decision Making 2005;5():7-7.</p><p>Published online 15 Mar 2005</p><p>PMCID:PMC1079858.</p><p>Copyright © 2005 Glenton et al; licensee BioMed Central Ltd.</p>