Journal of Medical Ethics (2)

Journal, British Medical Journal Publishing Group, London, UK

Journal of Negative Results in Biomedicine (2)

Journal, PubMed Central, National Library of Medicine, Bethesda, USA

Marijuana and Medicine: Assessing the Science Base (2)

Book, Janet E. Joy, National Academy Press, Washington, USA, 1999

Marijuana As Medicine?: The Science Beyond the Controversy (2)

Textbook, The National Academies Press, Washington, USA, 2000

Mayo Clinic Medical Professional Video Center (2)

Mayo Clinic, Rochester, MN, USA

Medical Images and Illustrations (2)

Diosphere Ltd t/a Medical Images, Wilmington, USA

Medical Ethics (2)

RAND Corporation, Santa Monica, USA

Agency for Healthcare Research and Quality (2)

U.S. Department of Health and Human Services, Rockville, USA

Catalog of Clinical Images (23)

Ch. Goldberg, University of California, San Diego

Nucleotide (3)

National Center for Biotechnology Information, Bethesda, MD, USA

Research in Nursing and Health (2)

Journal, John Wiley & Sons, Inc., Hoboken, USA free abstracts, paid full-text articles

Respiratory Research (2)

Journal, PubMed Central, National Library of Medicine, Bethesda, MD, USA

Google Scholar

Google, Mt View, Ca, USA

The Internet Journal of Cardiovascular Research (2)

Journal, Internet Scientific Publications, LLC., Sugar Land, TX, USA