Debugging your travel plans.  [electronic resource] 

 -  The Johns Hopkins medical letter health after 50  Sep 2003 
 - 6-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1042-1882 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Caliciviridae Infections--complications<br/>Gastroenteritis--prevention & control<br/>Humans<br/>Norwalk virus<br/>Severe Acute Respiratory Syndrome--prevention & control<br/>Travel