全文获取类型
收费全文 | 2113篇 |
免费 | 157篇 |
国内免费 | 2篇 |
专业分类
耳鼻咽喉 | 21篇 |
儿科学 | 37篇 |
妇产科学 | 56篇 |
基础医学 | 235篇 |
口腔科学 | 33篇 |
临床医学 | 449篇 |
内科学 | 385篇 |
皮肤病学 | 26篇 |
神经病学 | 214篇 |
特种医学 | 168篇 |
外科学 | 253篇 |
综合类 | 22篇 |
预防医学 | 128篇 |
眼科学 | 41篇 |
药学 | 103篇 |
中国医学 | 3篇 |
肿瘤学 | 98篇 |
出版年
2023年 | 12篇 |
2022年 | 25篇 |
2021年 | 72篇 |
2020年 | 36篇 |
2019年 | 73篇 |
2018年 | 64篇 |
2017年 | 46篇 |
2016年 | 62篇 |
2015年 | 64篇 |
2014年 | 70篇 |
2013年 | 116篇 |
2012年 | 136篇 |
2011年 | 149篇 |
2010年 | 72篇 |
2009年 | 67篇 |
2008年 | 101篇 |
2007年 | 113篇 |
2006年 | 104篇 |
2005年 | 105篇 |
2004年 | 88篇 |
2003年 | 82篇 |
2002年 | 86篇 |
2001年 | 46篇 |
2000年 | 48篇 |
1999年 | 20篇 |
1998年 | 26篇 |
1997年 | 16篇 |
1996年 | 13篇 |
1995年 | 18篇 |
1994年 | 12篇 |
1993年 | 21篇 |
1992年 | 34篇 |
1991年 | 20篇 |
1990年 | 24篇 |
1989年 | 19篇 |
1988年 | 18篇 |
1987年 | 18篇 |
1986年 | 19篇 |
1985年 | 13篇 |
1984年 | 9篇 |
1983年 | 6篇 |
1982年 | 7篇 |
1976年 | 5篇 |
1973年 | 7篇 |
1972年 | 7篇 |
1933年 | 5篇 |
1932年 | 5篇 |
1927年 | 6篇 |
1925年 | 10篇 |
1919年 | 4篇 |
排序方式: 共有2272条查询结果,搜索用时 562 毫秒
1.
As millions of people turn to social media for health information, better understanding the factors that guide health-related judgments and perceptions in this context is imperative. We report on two Web experiments (n > 400 total) examining the power of society’s widespread weight bias and related stereotypes to influence nutrition judgments in social media spaces. In Experiment 1, meals were judged as lower in nutritional quality when the person who recommended them (the source) was depicted as obese rather than of normal weight, an effect mediated by stereotypic beliefs about the source as a generally unhealthy person. Experiment 2 replicated this effect, which—notably—remained significant when controlling for objective nutritional information (calories and fat content). Results highlight spillover effects of weight bias that extend beyond person perception to color impressions of objects (here, food) that are associated with stigmatized attributes. Implications for everyday nutrition judgments and public health are considered. 相似文献
2.
3.
4.
Claire M Rickard Brigit L Roberts Jonathon Foote Matthew R McGrail 《Dimensions of critical care nursing》2006,25(5):234-242
Research coordinators in intensive care are a growing specialty about which little is known. This cross-sectional study surveyed the Australia and New Zealand Intensive Care Research Coordinators' Group (n = 49) regarding demographics, education, employment history, job structure, and role content. Most research coordinators were highly qualified and experienced nurses who undertake pharmaceutical trials, multicenter projects, departmental medical and nursing research, audits and data registries, and their own projects. 相似文献
5.
Central Sensitization Theory of Migraine: Clinical Implications 总被引:4,自引:2,他引:2
The clinical science of migraine headache continues to evolve. Theories of the pathophysiology of migraine have progressed from the early vascular basis of migraine to more complex current theories that emphasize the centrality of neuronal dysfunction. The most recently articulated theory of migraine is the central sensitization hypothesis, which proposes that altered processing of sensory input in the brainstem, principally the trigeminal nucleus caudalis, could account for many of the temporal and symptomatic features of migraine, as well as its poor response to triptan therapy when such treatment is initiated hours after the onset of pain. Both preclinical and clinical data support the central sensitization theory. A critical clinical implication of this theory is that drugs that are capable of either aborting or arresting the process of central sensitization, most prominently dihydroergotamine, may have a unique role in the treatment of migraine. An additional, and highly practical, implication is based upon the finding that cutaneous allodynia—pain arising from innocuous stimulation of the skin, as in hair brushing or the application of cosmetics—is an easily identifiable marker of central sensitization. Thus, the presence or absence of cutaneous allodynia can be integrated into the routine clinical assessment of migraine and utilized as a determinant of treatment. Future basic and clinical research on central sensitization is likely to be of ongoing importance to the field. 相似文献
6.
Michael Hutchinson Jonathon O'Riordan Mohammed Javed Etain Quin Donal Macerlaine Teresa Willcox Nollaig Parfrey Tamas G. Nagy Elisabeth Tournier-Lasserve 《Annals of neurology》1995,38(5):817-824
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a recently described familial cerebrovascular disorder shown to map to chromosome 19q12. Familial hemiplegic migraine has also been shown in some families to map close to the CADASIL locus. The fully developed CADASIL phenotype consists of recurrent strokes developing in the fourth decade, progressing to a pseudobulbar palsy, spastic quadriparesis, and subcortical dementia. In an Irish family 15 members were fully investigated by magnetic resonance scanning; 10 had typical magnetic resonance features of CADASIL. Five members of this family had familial hemiplegic migraine and 4 of these had magnetic resonance evidence of CADASIL. Two other members had migraine with and without aura as a presenting clinical symptom of CADASIL. This disorder has been shown by linkage analysis to map to the CADASIL locus at chromosome 19. The phenotype at presentation of CADASIL in this family was variable and age related and included familial hemiplegic migraine, migraine with and without aura, transient ischemic attacks, strokes, and spinal cord infarction. This family study increases our understanding of the spectrum of clinical manifestations of this underrecognized familial cerebrovascular disorder. 相似文献
7.
8.
Timothy J. Hodgson Peter A. Gaines Jonathon D. Beard 《Cardiovascular and interventional radiology》1994,17(6):333-335
Acute lower limb ischemia secondary to Buerger's disease in a young patient responded to thrombolysis and subsequent popliteal and anterior artery angioplasty. The value of angioplasty in non-limb-threatening ischemia in Buerger's disease has not been established but this case illustrates a role for thrombolysis and angioplasty in acute ischemia. 相似文献
9.
10.