Fernandes, E <br/><br/>
Bracken as a risk factor in digestive tract tumors: state of the art.  [electronic resource] 

 -  Annali dell'Istituto superiore di sanita  1991 
 - 275-80 p.  digital 
<br/><br/> Publication Type: Journal Article; Review 
<br/><br/><label>ISSN: </label>0021-2571 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Brazil--epidemiology<br/>Carcinogenicity Tests<br/>Cattle<br/>Cattle Diseases--etiology<br/>Costa Rica--epidemiology<br/>Diet<br/>Digestive System Neoplasms--epidemiology<br/>Food Contamination<br/>Hematuria--etiology<br/>Humans<br/>Japan--epidemiology<br/>Mice<br/>Milk<br/>Mutagenicity Tests<br/>Plant Extracts--toxicity<br/>Plants, Medicinal--chemistry<br/>Plants, Toxic--chemistry<br/>Rats<br/>Risk Factors<br/>Sheep<br/>Sheep Diseases--etiology<br/>Urinary Bladder Neoplasms--etiology<br/>Wales--epidemiology