Salmaso, S <br/><br/>
Observer bias in acellular pertussis vaccine trials.  [electronic resource] 

 -  Pediatrics  Oct 1999 
 - 997-8 p.  digital 
<br/><br/> Publication Type: Comment; Letter 
<br/><br/><label>ISSN: </label>0031-4005 
<br/><br/><label>Standard No.: </label>10.1542/peds.104.4.997  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child<br/>Drug Evaluation--statistics & numerical data<br/>Humans<br/>Observer Variation<br/>Pertussis Vaccine<br/>Research Design