Spigset, O <br/><br/>
The paraxanthine:caffeine ratio in serum or in saliva as a measure of CYP1A2 activity: when should the sample be obtained?  [electronic resource] 

 -  Pharmacogenetics  Jun 1999 
 - 409-12 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Journal Article 
<br/><br/><label>ISSN: </label>0960-314X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Area Under Curve<br/>Caffeine--blood<br/>Cytochrome P-450 CYP1A2--metabolism<br/>Humans<br/>Male<br/>Saliva--metabolism<br/>Specimen Handling--methods<br/>Theophylline--blood