Table 1 Total articles included in bibliometric analysis in the field of electronic cigarette by publication year
From: Worldwide research productivity in the field of electronic cigarette: a bibliometric analysis
Year | Total N = 356 (%) |
|---|---|
2007 | 1 (0.3) |
2009 | 6 (1.7) |
2010 | 13 (3.7) |
2011 | 26 (7.3) |
2012 | 47 (13.2) |
2013 | 116 (32.6) |
2014 | 147 (41.3) |