Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Classification according to thematic area.
| % N = 2206 |
|
|---|---|
| Medicine | 54 |
| Social sciences | 8 |
| Neuroscience | 7 |
| Biochemistry, genetics, and molecular biology | 5 |
| Pharmacology, toxicology, and pharmaceutics | 4 |
| Immunology and microbiology | 4 |
| Computer science | 3 |
| Health professions | 3 |
| Environmental science Engineering others |
3 6 |
