When looking for information online, be sure to consider the source of the information, including who created it.
(U.S. Government) Full-text information on health topics and drugs from the U.S. National Library of Medicine.
(Public Library of Science) PLoS features "peer-reviewed, open access scientific and medical journals that include original research as well as timely feature articles."
(NCBI) National Center for Biotechnology Information located within the National Library of Medicine and National Institutes of Health. Comprises more than 32 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.