Cousens, Simon N. <br/><br/>
Outcome measures in prospective studies of childhood diarrhoea and respiratory infections  Choosing and using them 

 - Geneva  WHO 
 - 27 
 - WHO/CDD/EDP/90.2 .
<br/><br/><label>Universal Decimal Class. No.: </label>616.34-008.314.4  / C58