Ng, Y K <br/><br/>
Selective area tuberculosis surveys in Singapore 1978.  [electronic resource] 

 -  Annals of the Academy of Medicine, Singapore  Jan 1981 
 - 50-5 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0304-4602 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aged<br/>Female<br/>Health Surveys<br/>Humans<br/>Male<br/>Mass Chest X-Ray<br/>Middle Aged<br/>Random Allocation<br/>Singapore<br/>Tuberculosis, Pulmonary--diagnostic imaging