全文获取类型
收费全文 | 1280166篇 |
免费 | 94792篇 |
国内免费 | 1994篇 |
学科分类
医药卫生 | 1376952篇 |
出版年
2018年 | 12015篇 |
2016年 | 10257篇 |
2015年 | 11819篇 |
2014年 | 16322篇 |
2013年 | 24733篇 |
2012年 | 34103篇 |
2011年 | 36533篇 |
2010年 | 21563篇 |
2009年 | 20361篇 |
2008年 | 35504篇 |
2007年 | 38531篇 |
2006年 | 39049篇 |
2005年 | 38347篇 |
2004年 | 36879篇 |
2003年 | 35846篇 |
2002年 | 35348篇 |
2001年 | 58375篇 |
2000年 | 59787篇 |
1999年 | 50674篇 |
1998年 | 13609篇 |
1997年 | 12174篇 |
1996年 | 12405篇 |
1995年 | 12397篇 |
1994年 | 11803篇 |
1993年 | 10909篇 |
1992年 | 41174篇 |
1991年 | 40596篇 |
1990年 | 40034篇 |
1989年 | 38882篇 |
1988年 | 36261篇 |
1987年 | 35493篇 |
1986年 | 33886篇 |
1985年 | 32295篇 |
1984年 | 24020篇 |
1983年 | 20880篇 |
1982年 | 12374篇 |
1981年 | 10945篇 |
1979年 | 22687篇 |
1978年 | 15915篇 |
1977年 | 13751篇 |
1976年 | 12990篇 |
1975年 | 14233篇 |
1974年 | 16729篇 |
1973年 | 16123篇 |
1972年 | 15370篇 |
1971年 | 14297篇 |
1970年 | 13273篇 |
1969年 | 12771篇 |
1968年 | 12029篇 |
1967年 | 10505篇 |
排序方式: 共有10000条查询结果,搜索用时 93 毫秒
991.
992.
Ahmet Güner MD Çağdaş Topel MD Aysel Türkvatan Cansever MD Ezgi Gültekin Güner MD Omaç Tüfekcioğlu MD Mehmet Ertürk MD Gamze Babür Güler MD 《Echocardiography (Mount Kisco, N.Y.)》2020,37(3):456-461
Endomyocardial fibrosis (EMF) is a globally unattended disease with significant rates of morbidity and mortality. It has a higher prevalence in tropical and subtropical countries compared to the rest of the world. Endomyocardial fibrosis can affect the atrioventricular valves, along with all four chambers of the heart, but spares the myocardium. Patients currently undergo symptomatic treatment with diuretics and vasodilators to enhance quality of life, although medical therapy alone is associated with poor prognosis. Hence, patients with severe symptoms prefer surgical treatment. Modern multimodality imaging, however, can help these definitions to be made more accurately. 相似文献
993.
994.
995.
The aim of this review was to provide an overview of developments, clinical implications and gaps in knowledge regarding the relationship between diabetes and sleep over the past 25 years, with special focus on contributions from the behavioural sciences. Multiple prospective observational and experimental studies have shown a link between suboptimal sleep and impaired glucose tolerance, decreased insulin sensitivity and the development of type 2 diabetes. While prevalence rates of suboptimal sleep vary widely according to definition, assessment and sample, suboptimal subjective sleep quality appears to be a common reality for one-third of people with type 1 diabetes and over half of people with type 2 diabetes. Both physiological and psychosocial factors may impair sleep in these groups. In turn, suboptimal sleep can negatively affect glycaemic outcomes directly or indirectly via suboptimal daytime functioning (energy, mood, cognition) and self-care behaviours. Technological devices supporting diabetes self-care may have both negative and positive effects. Diabetes and its treatment also affect the sleep of significant others. Research on the merits of interventions aimed at improving sleep for people with diabetes is in its infancy. Diabetes and sleep appear to be reciprocally related. Discussion of sleep deserves a central place in regular diabetes care. Multi-day, multi-method studies may shed more light on the complex relationship between sleep and diabetes at an individual level. Intervention studies are warranted to examine the potential of sleep interventions in improving outcomes for people with diabetes. 相似文献
996.
N. Müller T. Lehmann A. Klöss C. Günster C. Kloos U. A. Müller 《Diabetic medicine》2020,37(8):1326-1332
997.
998.
999.
1000.
Mukhtyar Chetan Myers Holly Scott David G. I. Misra Aseema Jones Colin 《Clinical rheumatology》2020,39(4):1325-1329
Clinical Rheumatology - Currently, there is no mechanism for service validation of diagnostic ultrasonography (US) for giant cell arteritis (GCA). Temporal artery biopsy (TAB) and classification... 相似文献