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.
Topic cluster network studied by Latent Dirichlet allocation: inter- and intra-relationships.
Green, Surgical intervention; Purple, Radiotherapy and chemotherapy intervention; Blue, Clinical case management; Orange, Epidemiology and cancer risk study; Red, Prognostic study. The size of circle represents the number of papers in each topic, the thickness of line represents the weight of connection between each topic.
