Figure 1.
(a) The process of searching and screening the articles according to the inclusion/exclusion criterion; (b) the incidence of mediastinal lymph node metastasis in thyroid carcinoma previously reported.
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.