1. Knox
R
. Shortages lead doctors to ration critical drugs. www.npr.org/blogs/health/2011/10/04/140958404/shortages-lead-doctors-to-ration-critical-drugs (accessed 2011 Oct 16).
2. American Pharmacists Association. Code of ethics for pharmacists. www.pharmacist.com/AM/Template.cfm?Section=Search1&template=/CM/HTMLDisplay.cfm&ContentID=2903 (accessed 2011 Oct 16).
3. ASHP guidelines on managing drug product shortages in hospitals and health systems;American Society of Health-System Pharmacists;Am J Health-Syst Pharm.,2009