分面浏览：发表日期 |
| 当前检索式 | ((ALL：Experimental study)) |
| 限定条件 | 无 |
| 2024 63 | 2023 162 | 2022 434 |
| 2021 792 | 2020 919 | 2019 1653 |
| 2018 2010 | 2017 2099 | 2016 2294 |
| 2015 1999 | 2014 1865 | 2013 1791 |
| 2012 1819 | 2011 1442 | 2010 3313 |
| 2009 1145 | 2008 1048 | 2007 886 |
| 2006 731 | 2005 691 | 2004 551 |
| 2003 458 | 2002 332 | 2001 337 |
| 2000 255 | 1999 195 | 1998 203 |
| 1997 153 | 1996 115 | 1995 102 |
| 1994 75 | 1993 58 | 1992 72 |
| 1991 37 | 1990 26 | 1989 25 |
| 1988 13 | 1987 12 | 1986 9 |
| 1985 10 | 1984 9 | 1983 10 |
| 1982 8 | 1981 2 | 1980 2 |
| 1979 2 | 1976 1 | 1962 1 |
