Table 1.
Association of the selected factors with SPM in the final prediction model for SPM risk in patients with adenocarcinoma and squamous cell carcinoma.
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.