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Table 1 The number of documents in each time slice

From: Revealing topics and their evolution in biomedical literature using Bio-DTM: a case study of ginseng

The serial number of slice The publication date of paper The number of paper The serial number of slice The publication date of paper The number of paper
1 1975–1995 389 9 2010 248
2 1996–2000 402 10 2011 343
3 2001–2003 411 11 2012 382
4 2004–2005 340 12 2013 410
5 2006 212 13 2014 426
6 2007 206 14 2015 439
7 2008 210 15 2016 432
8 2009 239 16 2017 295