收费全文 | 55321篇 |
免费 | 5343篇 |
国内免费 | 4048篇 |
医药卫生 | 64712篇 |
2024年 | 160篇 |
2023年 | 914篇 |
2022年 | 1765篇 |
2021年 | 3207篇 |
2020年 | 2303篇 |
2019年 | 1866篇 |
2018年 | 2116篇 |
2017年 | 1787篇 |
2016年 | 1741篇 |
2015年 | 2728篇 |
2014年 | 3362篇 |
2013年 | 2769篇 |
2012年 | 4162篇 |
2011年 | 4668篇 |
2010年 | 2692篇 |
2009年 | 2239篇 |
2008年 | 2846篇 |
2007年 | 2856篇 |
2006年 | 2857篇 |
2005年 | 2851篇 |
2004年 | 1885篇 |
2003年 | 1753篇 |
2002年 | 1497篇 |
2001年 | 1196篇 |
2000年 | 1280篇 |
1999年 | 1333篇 |
1998年 | 898篇 |
1997年 | 838篇 |
1996年 | 652篇 |
1995年 | 613篇 |
1994年 | 515篇 |
1993年 | 313篇 |
1992年 | 393篇 |
1991年 | 311篇 |
1990年 | 289篇 |
1989年 | 241篇 |
1988年 | 225篇 |
1987年 | 165篇 |
1986年 | 141篇 |
1985年 | 105篇 |
1984年 | 46篇 |
1983年 | 42篇 |
1982年 | 18篇 |
1981年 | 20篇 |
1980年 | 15篇 |
1979年 | 15篇 |
1977年 | 2篇 |
1973年 | 2篇 |
1935年 | 4篇 |
1910年 | 1篇 |
Method: This is a randomized study registered in Chinese Clinical Trial Registry (ChiCTR-IOR-17011289). Eighty rural left-behind elderly people who had a Geriatric Depression Scale (GDS) score between 11 and 25 were randomly assigned to the intervention (n?=?40) and control group (n?=?40). The intervention group received both MBAT and regular treatment for 8 weeks while the control group received regular treatment. Both groups were assessed with the GDS, Beck Anxiety Inventory (BAI), and Oxford Happiness Questionnaire (OHQ) at baseline, immediately post-intervention, and at 3 months post-intervention.
Results: There were a total of 73 participants that completed the intervention. The scores of GDS and BAI decreased significantly, but the scores of OHQ increased significantly in the intervention group after 8 sessions of MBAT (P?<?.01). The reduction in depression symptoms after the intervention was maintained at the 3-month follow-up. Significant differences in GDS, BAI, and OHQ scores were observed between the intervention group and the control group (P?<?.01).
Conclusion: MBAT produced a significantly greater reduction in depressive symptoms than regular care in rural left-behind elderly.
Clinical or methodological significance of this article: A modified behavioral activation (BA) psychotherapy can significantly reduce the recurrence and seriousness of depression symptoms in the left-behind elderly with mild to moderate depression. This study also suggests that further study of the MBAT as an intervention will provide a direction for the management of mental health in rural left-behind elders. 相似文献