收费全文 | 81738篇 |
免费 | 8798篇 |
国内免费 | 5827篇 |
医药卫生 | 96363篇 |
2024年 | 283篇 |
2023年 | 1438篇 |
2022年 | 2949篇 |
2021年 | 4695篇 |
2020年 | 3589篇 |
2019年 | 2758篇 |
2018年 | 2869篇 |
2017年 | 2829篇 |
2016年 | 2509篇 |
2015年 | 4027篇 |
2014年 | 4849篇 |
2013年 | 4819篇 |
2012年 | 6862篇 |
2011年 | 7263篇 |
2010年 | 5219篇 |
2009年 | 4329篇 |
2008年 | 4912篇 |
2007年 | 4790篇 |
2006年 | 4420篇 |
2005年 | 3841篇 |
2004年 | 2949篇 |
2003年 | 2576篇 |
2002年 | 2302篇 |
2001年 | 1739篇 |
2000年 | 1454篇 |
1999年 | 1241篇 |
1998年 | 710篇 |
1997年 | 695篇 |
1996年 | 521篇 |
1995年 | 453篇 |
1994年 | 369篇 |
1993年 | 256篇 |
1992年 | 313篇 |
1991年 | 248篇 |
1990年 | 235篇 |
1989年 | 203篇 |
1988年 | 171篇 |
1987年 | 154篇 |
1986年 | 133篇 |
1985年 | 110篇 |
1984年 | 58篇 |
1983年 | 39篇 |
1982年 | 20篇 |
1981年 | 21篇 |
1980年 | 18篇 |
1979年 | 19篇 |
1978年 | 12篇 |
1974年 | 9篇 |
1971年 | 10篇 |
1970年 | 9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