Table 1.
Article type | Year of publication: number of articles (references) |
|||||||
---|---|---|---|---|---|---|---|---|
1945–1975 | 1976–1981 | 1982–1987 | 1988–1993 | 1994–1999 | 2000–2005 | 2006–2011 | Total (%) | |
Article | 174 | 249 53 | 227 35 | 128 | 6 (11.1) | |||
Review | 143 | 431 38 46 63 | 552 64 67 75 76 | 232 77 | 12 (22.2) | |||
Practical Guidelines | 247 55 | 325 50 59 | 739–41 44 66 69 70 | 12 (22.2) | ||||
Research | 145 | 426 29 37 65 | 161 | 551 56 60 68 71 | 433 36 42 57 | 830 34 48 58 62 72 73 78 | 154 | 24 (44.4) |
Total (%) | 1 (1.8) | 5 (9.2) | 1 (1.8) | 8 (14.8) | 12 (22.2) | 17 (31.5) | 10 (18.5) | 54 (100) |
*The search was conducted on 27 May 2015. The total number of articles included in list A is 54, and not 50, because 4 articles had the same number of citations. Articles with reference numbers25–33 appeared in lists A and B, but with different rankings.