| cdc.gov | US - - Centers for Disease Control and Prevention (CDC) |
| healthfinder.gov | Healthfinder® — Your Guide To Reliable Health Information |
| health.gov | Health.gov |
| flinders.edu.au | Research Centre for Injury Studies |
| ihra.net | International Harm Reduction Association |
| health.org | The National Clearinghouse for Alcohol and Drug Information |
| state.md.us | Maryland Department of Agriculture - Pesticides |
| aapcc.org | American Association of Poison Control Centers |
| nih.gov | National Institutes of Health |
| hhs.gov | U.S. Department of Health and Human Services |
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