McMahon, G. 2003. Prescription Pot. New Horizon Press. Fair Hills, New Jersey, USA

Grinspoon, L. 1997. Marihuana The Forbidden Medicine. Yale University Press. New Haven, Connecticut, USA.

Russo, E. 2001. Cannabis Therapeutics in HIV/AIDS. The Haworth Integrative Healing Press. Binghamton, New York, USA

Roffman, R. 1982. Marijuana As Medicine. Madrona Publishers Inc. Seattle, Washington, USA

Mack, A. 2001. Marijuana As Medicine?. National Academy Press. Washington D.C., USA

Cooper, R. 2009. Botanical Medicine : From Bench to Bedside. New Rochelle. New York,  New York, USA

Robinson, R. 1996. The Great Book of Hemp. Park Street Press. Vermont, Rochester, USA

Onaivi, E. 2002. Biology of Marijuana. London, New  York, New York, USA.  

Smigel, K. 1997. Cancer Problems Lead List for Potential Medical Marijuana Research Studies <URL:  >

Schwartz , R.H., Voth, E.A., and Sheridan, M.J. Marijuana to Prevent Nausea and Vomiting in Cancer Patients: A survey of Clinical Oncologists<URL:>  . Accessed 8  March 2011.

PBS 2009. <URL:>. Accessed 16 March 2011.