Use of ICD-9 diagnosis codes in epidemiologic surveys may significantly underestimate the incidence and impact of invasive pneumococcal disease locally.
- Author:
	        		
		        		
		        		
			        		Li Yang HSU
			        		
			        		;
		        		
		        		
		        		
			        		Tse Hsien KOH
			        		
			        		
		        		
		        		
		        		
 - Publication Type:Letter
 - MeSH: Health Surveys; Hospitalization; Humans; Incidence; International Classification of Diseases; Pneumococcal Infections; epidemiology; Singapore; epidemiology
 - From:Singapore medical journal 2008;49(5):441-441
 - CountrySingapore
 - Language:English