Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

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.

Https

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.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Text availability

Article attribute

Article type

Publication date

Search Results

493 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Results By Year timeline is not available.
Page 1
Sex difference in the near-24-hour intrinsic period of the human circadian timing system.
Duffy JF, Cain SW, Chang AM, Phillips AJ, Münch MY, Gronfier C, Wyatt JK, Dijk DJ, Wright KP Jr, Czeisler CA. Duffy JF, et al. Among authors: chang am. Proc Natl Acad Sci U S A. 2011 Sep 13;108 Suppl 3(Suppl 3):15602-8. doi: 10.1073/pnas.1010666108. Epub 2011 May 2. Proc Natl Acad Sci U S A. 2011. PMID: 21536890 Free PMC article.
Human responses to bright light of different durations.
Chang AM, Santhi N, St Hilaire M, Gronfier C, Bradstreet DS, Duffy JF, Lockley SW, Kronauer RE, Czeisler CA. Chang AM, et al. J Physiol. 2012 Jul 1;590(13):3103-12. doi: 10.1113/jphysiol.2011.226555. Epub 2012 Apr 23. J Physiol. 2012. PMID: 22526883 Free PMC article. Clinical Trial.
A common polymorphism near PER1 and the timing of human behavioral rhythms.
Lim AS, Chang AM, Shulman JM, Raj T, Chibnik LB, Cain SW, Rothamel K, Benoist C, Myers AJ, Czeisler CA, Buchman AS, Bennett DA, Duffy JF, Saper CB, De Jager PL. Lim AS, et al. Among authors: chang am. Ann Neurol. 2012 Sep;72(3):324-34. doi: 10.1002/ana.23636. Ann Neurol. 2012. PMID: 23034908 Free PMC article.
493 results