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.
Cumulative number of publications on microneedles. The number of publications was determined by searching the PubMed database (http://www.ncbi.nlm.nih.gov/pubmed/) and Web of Science (http://apps.webofknowledge.com) on 25 November 2011 using the search terms “microneedle”, “microfabricated needle”, and “nanopatch”. Conference proceedings were excluded.
