Fig 1. Citations in the NIH-OCC.
(A) Citations per year. (B) Citation source by time period. ML, Machine Learning; NLM, National Library of Medicine; OCC, Open Citation Collection.
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.