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.
Baseline characteristics of the individual studies (n=10, without systematic reviews and meta-analysis).
| Characteristics | Individual studies, n (%) | |
| Location | ||
|
|
United States | 3 (30) |
|
|
Taiwan | 1 (10) |
|
|
United Kingdom | 2 (20) |
|
|
Greece | 1 (10) |
|
|
Australia | 1 (10) |
|
|
Israel | 1 (10) |
| Intervention | ||
|
|
Real-time video | 3 (30) |
|
|
Real-time video+audio | 1 (10) |
|
|
Asynchronous | 4 (40) |
|
|
Combined (real-time+asynchronous) | 2 (20) |
