分面浏览：发表日期 |
| 当前检索式 | ((ALL：oxygen concentration)) |
| 限定条件 | 无 |
| 2024 5 | 2023 15 | 2022 49 |
| 2021 95 | 2020 156 | 2019 182 |
| 2018 268 | 2017 221 | 2016 257 |
| 2015 204 | 2014 203 | 2013 170 |
| 2012 149 | 2011 119 | 2010 329 |
| 2009 105 | 2008 102 | 2007 88 |
| 2006 60 | 2005 69 | 2004 58 |
| 2003 60 | 2002 39 | 2001 40 |
| 2000 39 | 1999 26 | 1998 17 |
| 1997 16 | 1996 15 | 1995 11 |
| 1994 10 | 1993 6 | 1992 9 |
| 1991 5 | 1990 3 | 1988 6 |
| 1986 1 | 1985 1 | 1984 1 |
| 1982 1 | 1976 1 |
