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Table 1 Total number of articles included in a bibliometric analysis of worldwide publications related to methaemoglobinaemia from 1940 to 2013

From: Global methaemoglobinaemia research output (1940–2013): a bibliometric analysis

Year of publication

Total n = 1770 (%)

1940–1949

29 (1.8)

1950–1959

98 (5.4)

1960–1969

218 (12.3)

1970–1979

246 (13.9)

1980–1989

276 (15.6)

1990–1999

315 (17.8)

2000–2009

389 (22.0)

2010–2013

199 (11.2)