Chang 2004.
| Study characteristics | ||
| Discipline | Medical Surgical | |
| Country of Origin | USA | |
| Participants or Decliners | Participants | |
| Notes | ||
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.