British Medical Journal
www.bmj.com
Center Watch
www.centerwatch.com
Centers for Disease Control and Prevention
www.cdc.gov
Centre for Medicines Research
www.cmr.org
Current Controlled Trials
www.controlled-trials.com
HMSO
www.hmso.gov.uk
General Medical Council
www.gmc-uk.org
Medline (US National Library of Medicine)
www.ncbi.nlm.nih.gov/PubMed
National Libarary of Medicine
www.nlm.nih.gov
Online US Pharmacopeia
www.usp.org
Pharma-Online
www.losan-pharma.de
The National Cancer Institute
www.cancer.gov