Kelly, J P <br/><br/>
Major upper gastrointestinal bleeding and the use of calcium channel blockers.  [electronic resource] 

 -  Lancet (London, England)  Feb 1999 
 - 559 p.  digital 
<br/><br/> Publication Type: Letter; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0140-6736 
<br/><br/><label>Standard No.: </label>10.1016/S0140-6736(98)05202-7  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aspirin--therapeutic use<br/>Calcium Channel Blockers--adverse effects<br/>Case-Control Studies<br/>Gastrointestinal Hemorrhage--chemically induced<br/>Humans<br/>Hungary--epidemiology<br/>Massachusetts--epidemiology<br/>Multivariate Analysis<br/>Risk Factors<br/>Sweden--epidemiology