Mohandas, K M <br/><br/>
Problems with epidemiologic studies on Helicobacter pylori in India.  [electronic resource] 

 -  Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology  Nov 1997 
 - S6-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0254-8860 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adolescent<br/>Adult<br/>Case-Control Studies<br/>Child<br/>Child, Preschool<br/>Cross-Sectional Studies<br/>Female<br/>Helicobacter Infections--epidemiology<br/>Helicobacter pylori<br/>Humans<br/>India--epidemiology<br/>Infant<br/>Male<br/>Middle Aged<br/>Research Design<br/>Selection Bias