An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Robison RR, Ryan ME, Cooper ID.Robison RR, et al. Among authors: cooper id.Evid Based Libr Inf Pract. 2009 Jan 1;4(1):4-16. doi: 10.18438/b8t03b.Evid Based Libr Inf Pract. 2009.PMID: 19750182Free PMC article.
Crum JA, Cooper ID.Crum JA, et al. Among authors: cooper id.J Med Libr Assoc. 2013 Oct;101(4):278-86. doi: 10.3163/1536-5050.101.4.009.J Med Libr Assoc. 2013.PMID: 24163599Free PMC article.