全文获取类型
收费全文 | 8036篇 |
免费 | 460篇 |
国内免费 | 12篇 |
专业分类
耳鼻咽喉 | 56篇 |
儿科学 | 223篇 |
妇产科学 | 133篇 |
基础医学 | 778篇 |
口腔科学 | 180篇 |
临床医学 | 837篇 |
内科学 | 1627篇 |
皮肤病学 | 137篇 |
神经病学 | 552篇 |
特种医学 | 236篇 |
外科学 | 1413篇 |
综合类 | 142篇 |
一般理论 | 5篇 |
预防医学 | 692篇 |
眼科学 | 332篇 |
药学 | 632篇 |
中国医学 | 7篇 |
肿瘤学 | 526篇 |
出版年
2024年 | 8篇 |
2023年 | 80篇 |
2022年 | 161篇 |
2021年 | 328篇 |
2020年 | 146篇 |
2019年 | 227篇 |
2018年 | 263篇 |
2017年 | 216篇 |
2016年 | 239篇 |
2015年 | 268篇 |
2014年 | 353篇 |
2013年 | 467篇 |
2012年 | 698篇 |
2011年 | 716篇 |
2010年 | 380篇 |
2009年 | 316篇 |
2008年 | 491篇 |
2007年 | 490篇 |
2006年 | 419篇 |
2005年 | 459篇 |
2004年 | 401篇 |
2003年 | 350篇 |
2002年 | 280篇 |
2001年 | 72篇 |
2000年 | 50篇 |
1999年 | 55篇 |
1998年 | 53篇 |
1997年 | 38篇 |
1996年 | 32篇 |
1995年 | 36篇 |
1994年 | 27篇 |
1993年 | 18篇 |
1992年 | 33篇 |
1991年 | 37篇 |
1990年 | 29篇 |
1989年 | 26篇 |
1988年 | 16篇 |
1987年 | 18篇 |
1986年 | 19篇 |
1985年 | 15篇 |
1984年 | 22篇 |
1983年 | 16篇 |
1980年 | 15篇 |
1979年 | 10篇 |
1978年 | 8篇 |
1974年 | 8篇 |
1973年 | 11篇 |
1972年 | 8篇 |
1971年 | 12篇 |
1970年 | 9篇 |
排序方式: 共有8508条查询结果,搜索用时 15 毫秒
1.
2.
3.
O.R. Mitchell R. Dave J. Bekker P.A. Brennan 《The British journal of oral & maxillofacial surgery》2021,59(3):384-385
The first COVID-19 vaccination was given in December 2020 and there is an effort to vaccinate the international population on a massive scale. Common side effects from the vaccine include headache and tiredness. Regional lymphadenopathy has been described in relation to other vaccines. We describe two cases of supraclavicular reactive lymphadenopathy presenting in patients who had the COVID vaccination in the ipsilateral arm. Awareness of this diagnosis is important for patients presenting to the neck lump clinic. 相似文献
4.
5.
6.
Roberto V.P. Ribeiro Mitesh V. Badiwala Danny Ramzy Laura C. Tumiati Vivek Rao 《The Journal of thoracic and cardiovascular surgery》2019,157(2):615-625.e1
Objective
Hypertonic saline (HTS) has potent immune and vascular effects. We assessed recipient pretreatment with HTS on allograft function in a porcine model of heart transplantation and hypothesized that HTS infusion would limit endothelial and left ventricular (LV) dysfunction following transplantation.Methods
Heart transplants were performed after 6 hours of cold ischemic storage. Recipient pigs were randomized to treatment with or without HTS (7.5% NaCl) before cardiopulmonary bypass (CPB). Using a myograft apparatus, coronary artery endothelial-dependent (Edep) and -independent (Eind) relaxation was assessed. LV performance was determined using pressure-volume loop analysis. Pulmonary interleukin (IL)-2, IL-6, and tumor necrosis factor (TNF)-α expression was measured.Results
Weaning from CPB and LV performance after transplantation were improved in HTS-treated animals. Successful weaning from CPB was greater in the HTS-treated hearts (8 of 8 vs 2 of 8; P < .05). Mean LV functional recovery was improved in the HTS-treated animals, as assessed by preload recruitable stroke work (65 ± 10% vs 27 ± 10%; P < .001) and end-systolic elastance (55 ± 7% vs 37 ± 4%; P < .001). Treatment with HTS resulted in improved Edep (mean maximum elastance [Emax], 56 ± 5% vs 37 ± 7%; P < .001) and Eind (mean Emax%, 77 ± 6% vs 52 ± 4%; P < .001) vasorelaxation compared with control. Pulmonary expression of IL-2, IL-6, and TNF-α increased following transplantation, whereas HTS therapy attenuated IL production (P < .001). Transplantation increased plasma TNF-α levels and LV TNF-α expression, whereas HTS prevented this up-regulation (P < .001).Conclusions
Recipient HTS pretreatment preserves allograft vasomotor and LV function, and HTS therapy limits CPB-induced injury. HTS may be a novel recipient intervention to prevent graft dysfunction. 相似文献7.
Functional recovery, the goal of treatment, has long been overlooked in the assessment of effectiveness of pharmacological treatments. However, with the recent shift in paradigm, from syndromal–symptomatic recovery to functional recovery, there appears to be a new interest in the definition and evaluation of functional recovery. Since functional recovery lags symptomatic recovery, sometimes by months or years, the attainment of functional recovery will be determined by both efficacy and long-term compliance. Quetiapine, due to its efficacy in both mania and depression, and effect on cognition may lead to improved functioning in patients with bipolar disorder. 相似文献
8.
9.
10.
Amelie Perron RN PhD Trudy Rudge RN RMHN PhD Dave Holmes RN PhD 《Nursing philosophy》2010,11(2):100-111
The concept of citizenship is becoming more and more prominent in specific fields, such as psychiatry/mental health, where it is constituted as a solution to the issues of exclusion, discrimination, and poverty often endured by the mentally ill. We argue that such discourse of citizenship represents a break in the history of psychiatry and constitutes a powerful strategy to counter the effects of equally powerful psychiatric labelling. However, we call into question the emancipatory promise of a citizenship agenda. Foucault's concept of governmentality is helpful in understanding the production of the citizen subject, its location within the ‘art of government’, as well as the ethical and political implications of citizenship in the context of mental health. 相似文献