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.
| Species | 1 | 2 | ≥3 | Unclear | 1 (%) | ≥2 (%) | Unclear (%) |
| Mouse (n = 72) | 38 | 8 | 16 | 10 | 53 | 33 | 14 |
| Primate (n = 86) | 67 | 8 | 8 | 3 | 78 | 19 | 4 |
| Rat (n = 113) | 80 | 15 | 15 | 3 | 71 | 27 | 3 |
| All (n = 271) | 185 | 31 | 39 | 16 | 68 | 26 | 6† |
68% (185/271) of all studies reported the results of one experiment, but in 6% (16/271) of all the studies it was unclear whether one or more experiments were being described.
