Mickman et al. Photoperiod alters phase difference between activity onset in vivo and mPer2::luc peak in vitro. Am J Physiol Regul Integr Comp Physiol 295: R1688–R1694, 2008. First published September 3, 2008; doi:10.1152/ajpregu.90510.2008 (http://ajpregu.physiology.org/cgi/content/full/295/5/R1688).
The second author was incorrectly identified as Jeremy S. Stubblefield. The second author is Jeremy J. Stubblefield.
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