Lissoni, P <br/><br/>
Ultradian chronomodulation by melatonin of a Placebo effect upon human killer cell activity.  [electronic resource] 

 -  Chronobiologia   
 - 339-43 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0390-0037 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Activity Cycles--drug effects<br/>Chronobiology Phenomena<br/>Circadian Rhythm--drug effects<br/>Cytotoxicity, Immunologic--drug effects<br/>Humans<br/>Killer Cells, Natural--drug effects<br/>Male<br/>Melatonin--administration & dosage<br/>Placebos--pharmacology<br/>Sodium Chloride--pharmacology