Many Chronically Ill Patients Don't Tell Their Doctors That They Limit Use of Prescription Drugs Because of Cost (09/13/2004, Agency for Healthcare Research and Quality) - http://www.ahrq.gov/news/press/pr2004/chrcostpr.htm
MedlinePlus: Drug Information (American Society of Health-System Pharmacists, United States Pharmacopeial Convention) - Information on prescription and over-the-counter medications - http://www.nlm.nih.gov/medlineplus/druginformation.html