Figure 1.
An outline of the key concepts integrated into musculoskeletal pain (M54.5 lower back pain; M54.2 Cervicalgia) and operational qualifiers adopted in this study.
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.