| Medical/Disease Research/Clinical Labs | Medical/Disease Research/Clinical Labs | 55 |
| Health Issues | Health Issues | 54 |
| Law Enforcement/Crime/Criminal Justice | Law Enforcement/Crime/Criminal Justice | 23 |
| Tobacco | Tobacco | 18 |
| Food Industry (safety, labeling, etc.) | Food Industry (safety, labeling, etc.) | 14 |
| Civil Rights/Civil Liberties | Civil Rights/Civil Liberties | 12 |
| Indian/Native American Affairs | Indian/Native American Affairs | 11 |
| Alcohol and Drug Abuse | Alcohol and Drug Abuse | 8 |
| Pharmacy | Pharmacy | 5 |
| Environment/Superfund | Environment/Superfund | 5 |
| Government Issues | Government Issues | 4 |
| Bankruptcy | Bankruptcy | 4 |
| Taxation/Internal Revenue Code | Taxation/Internal Revenue Code | 3 |
| Firearms/Guns/Ammunition | Firearms/Guns/Ammunition | 2 |
| Religion | Religion | 2 |
| Trade (domestic/foreign) | Trade (domestic/foreign) | 2 |
| Manufacturing | Manufacturing | 1 |
| Immigration | Immigration | 1 |