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Table 3 Trend in the number of journals classified in the Public, Environmental and Occupational Health category.

From: Time trends in the impact factor of Public Health journals

Year 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003
No. of journals 58 60 58 60 61 73 80 84 87 88 90 89