Description of respondent and non-respondent public health departments (PHD) in terms of number of primary health care (PHC) centers and natural hazard events in corresponding areas during the study period .
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.