全文获取类型
收费全文 | 901014篇 |
免费 | 63807篇 |
国内免费 | 2548篇 |
专业分类
耳鼻咽喉 | 12488篇 |
儿科学 | 28693篇 |
妇产科学 | 26153篇 |
基础医学 | 126848篇 |
口腔科学 | 24711篇 |
临床医学 | 75148篇 |
内科学 | 183559篇 |
皮肤病学 | 19020篇 |
神经病学 | 71486篇 |
特种医学 | 36556篇 |
外国民族医学 | 336篇 |
外科学 | 142386篇 |
综合类 | 19423篇 |
现状与发展 | 2篇 |
一般理论 | 247篇 |
预防医学 | 64717篇 |
眼科学 | 20188篇 |
药学 | 64103篇 |
中国医学 | 2026篇 |
肿瘤学 | 49279篇 |
出版年
2018年 | 9154篇 |
2017年 | 7252篇 |
2016年 | 7779篇 |
2015年 | 8840篇 |
2014年 | 12515篇 |
2013年 | 19330篇 |
2012年 | 25827篇 |
2011年 | 27481篇 |
2010年 | 16705篇 |
2009年 | 15878篇 |
2008年 | 26276篇 |
2007年 | 27855篇 |
2006年 | 28083篇 |
2005年 | 27580篇 |
2004年 | 26360篇 |
2003年 | 25542篇 |
2002年 | 25107篇 |
2001年 | 41386篇 |
2000年 | 42596篇 |
1999年 | 36319篇 |
1998年 | 9997篇 |
1997年 | 9187篇 |
1996年 | 9101篇 |
1995年 | 8461篇 |
1994年 | 8091篇 |
1993年 | 7594篇 |
1992年 | 28216篇 |
1991年 | 26989篇 |
1990年 | 26421篇 |
1989年 | 25351篇 |
1988年 | 23562篇 |
1987年 | 23172篇 |
1986年 | 22253篇 |
1985年 | 21154篇 |
1984年 | 15807篇 |
1983年 | 13477篇 |
1982年 | 8088篇 |
1979年 | 14589篇 |
1978年 | 10208篇 |
1977年 | 8628篇 |
1976年 | 8147篇 |
1975年 | 8960篇 |
1974年 | 10698篇 |
1973年 | 10183篇 |
1972年 | 9661篇 |
1971年 | 8918篇 |
1970年 | 8584篇 |
1969年 | 8025篇 |
1968年 | 7684篇 |
1967年 | 7086篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Hillary R Bogner Mark S Cary Martha L Bruce Charles F Reynolds Benoit Mulsant Thomas Ten Have George S Alexopoulos 《The American journal of geriatric psychiatry》2005,13(10):861-868
OBJECTIVE: The authors described the influence of specific medical conditions on clinical remission and response of major depression (MDD) in a clinical trial evaluating a care-management intervention among older primary-care patients. METHODS: Adults age 60 years and older were randomly selected and screened for depression. Participants were randomly assigned to Usual Care or to an Intervention with a depression care-manager offering algorithm-based care for MDD. In all, 324 adults meeting criteria for MDD were included in these analyses. Remission and response was defined by a score on the Hamilton Rating Scale for Depression <10 and by a decrease from baseline of > or =50%, respectively. Medical comorbidity was ascertained through self-report. Cognitive impairment was defined by a score <24 on the Mini-Mental State Exam (MMSE). RESULTS: In Usual Care, rates of remission were faster in persons who reported atrial fibrillation (AF) than in persons who did not report AF and slower in persons who reported chronic pulmonary disease than in persons who did not report chronic pulmonary disease; rates of response were less stable in persons with MMSE <24 than in those with MMSE > or =24. In the Intervention condition, none of the specific chronic medical conditions were significantly associated with outcomes for MDD. CONCLUSIONS: Because disease-specific findings were observed in persons who received Usual Care but not in persons who received more intensive treatment in the Intervention condition, our results suggest that the association of medical comorbidity and treatment outcomes for MDD may be determined by the intensity of treatment for depression. 相似文献
992.
993.
994.
995.
996.
997.
998.
999.
1000.