Siegel, Erin M <br/><br/>
Temporal variation and identification of factors associated with endogenous retinoic acid isomers in serum from Brazilian women.  [electronic resource] 

 -  Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology  Nov 2004 
 - 1693-703 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>1055-9965 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Brazil<br/>Cholesterol--blood<br/>Chromatography, High Pressure Liquid<br/>Diet<br/>Female<br/>Humans<br/>Keratolytic Agents--blood<br/>Life Style<br/>Seasons<br/>Social Class<br/>Stereoisomerism<br/>Tretinoin--blood