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Yearly Citation Totals from 2012 MEDLINE/PubMed Baseline: 20,494,848 Citations Found

1809
1811
1812
1813
1814
1815
1816
1817
1818
1819
1821
1823
1827
1828
1829
1831
1832
1833
22
33
24
27
29
29
43
25
33
31
35
51
46
14
14
21
17
13
1835
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
21
18
25
24
146
526
662
564
339
280
279
241
245
211
215
233
237
230
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
140
178
249
257
235
223
169
202
191
169
159
134
144
366
513
423
428
489
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
494
546
427
441
451
395
485
504
784
922
479
1,141
1,345
1,427
1,463
1,418
1,167
1,506
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1,041
894
1,367
1,642
1,125
1,491
1,794
1,791
1,773
1,475
1,418
1,628
1,725
1,945
1,899
2,115
2,069
2,058
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
2,699
2,958
3,017
3,333
3,312
3,535
3,531
3,325
3,134
2,890
2,856
3,089
3,297
3,329
3,472
3,761
4,160
4,393
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
4,693
5,298
4,922
5,010
4,905
4,828
5,009
4,998
4,953
5,065
4,801
4,775
5,230
5,023
4,500
4,307
4,259
4,184
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
4,367
20,220
54,077
65,457
71,095
61,958
82,277
102,097
107,417
108,001
105,136
108,035
106,505
111,040
108,890
109,529
111,632
119,823
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
127,031
143,141
161,619
176,646
179,122
190,795
206,665
213,421
216,946
221,347
225,388
229,451
233,219
246,897
252,353
259,180
269,160
278,058
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
276,363
278,691
290,260
303,776
312,390
322,435
335,137
352,684
370,073
386,100
393,112
393,799
397,146
403,005
411,830
420,923
425,876
437,549
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
452,153
466,622
494,111
525,058
546,308
573,597
608,379
641,658
670,058
692,343
728,269
753,191
775,685
466,739
365