Mass health examinations 
by World Health Organization 
 - Geneva  World Health Organization  1971 
 - 99p 
 - Public health papers; 45 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medical screening --Congresses.<br/>Health surveys --Congresses
<br/><br/><label>Dewey Class. No.: </label>O1 W893