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Table 1 Literature search strategy and results.

From: The incidence of acute encephalitis syndrome in Western industrialised and tropical countries

Search Search Strategy Dates of original search Numbers of articles (No limits) Title screened articles Totals from title screen Duplicates removed Further Title & Abstract or paper screen
1 Pubmed "Incidence or epidemiology" AND "encephalitis". 1950-autumn 2007 6895 479   1083 87
2 Pubmed "encephalitis and epidemiology" AND" Japanese encephalitis Virus and Incidence" 1950-autumn 2007 492 66 (-34 duplicates) = 32 527   
3 Pubmed "encephalitis and epidemiology" AND "herpes and Incidence" 1950-autumn 2007 266 43(-27 duplicates) = 16    
4 OVID "Incidence or epidemiology" AND "encephalitis". 1950-autumn 2007 Exploding each term 509 1467 – 48 duplicates = 1419 445 445   
5 EMBASE "Incidence or epidemiology" AND "encephalitis". [Limits English, Human] 1966-autumn 2007 1631 exploded terms 3369 – duplicates 3364 300 300   
Totals    12,436 1,272 1,272 1,083 87