JCR


Open Access

Variation in nocturnality and circadian activity rhythms between photoresponsive F344 and nonphotoresponsive Sprague Dawley rats

Cheryl D Seroka, Cynthia E Johnson and Paul D Heideman*

Journal of Circadian Rhythms 2008, 6:8 doi:10.1186/1740-3391-6-8

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