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.
Search strategy.
| Concept | Search terms |
|---|---|
| health | health, well-being, vulnerability |
| industrial workers | industrial zone, industrial park, industrial worker*, worker |
| Vietnam | Vietnam, Viet-nam |
In each concept, search term will be linked with each other by word “OR”, and we use the word “OR” to combine all the concept.
