Skip navigation | ||
|
||
California | 8% |
Florida | 5% |
New York | 4% |
Texas | 4% |
Pennsylvania | 4% |
Maryland | 3% |
Illinois | 3% |
Outside the U.S. | 29% |
Other | 40% |
MedlinePlus |
Home | Health Topics | Drugs & Supplements | Encyclopedia | Dictionary | News | Directories | Other Resources | |
Disclaimers | Copyright | Privacy | Accessibility | Quality Guidelines U.S. National Library of Medicine, 8600 Rockville Pike, Bethesda, MD 20894 National Institutes of Health | Department of Health & Human Services |
Date last updated: 23 April 2007 |