Raiewski, Evan E <br/><br/>
Twice daily melatonin peaks in Siberian but not Syrian hamsters under 24 h light:dark:light:dark cycles.  [electronic resource] 

 -  Chronobiology international  Nov 2012 
 - 1206-15 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>1525-6073 
<br/><br/><label>Standard No.: </label>10.3109/07420528.2012.719965  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Circadian Rhythm--physiology<br/>Cricetinae<br/>Male<br/>Melatonin--blood<br/>Mesocricetus--blood<br/>Motor Activity--physiology<br/>Phodopus--blood<br/>Photoperiod<br/>Species Specificity