全文获取类型
收费全文 | 3293720篇 |
免费 | 282455篇 |
国内免费 | 13778篇 |
专业分类
耳鼻咽喉 | 45213篇 |
儿科学 | 106776篇 |
妇产科学 | 85320篇 |
基础医学 | 529553篇 |
口腔科学 | 88553篇 |
临床医学 | 296265篇 |
内科学 | 577232篇 |
皮肤病学 | 89997篇 |
神经病学 | 283851篇 |
特种医学 | 130133篇 |
外国民族医学 | 361篇 |
外科学 | 510828篇 |
综合类 | 101809篇 |
现状与发展 | 23篇 |
一般理论 | 2284篇 |
预防医学 | 277723篇 |
眼科学 | 75831篇 |
药学 | 225147篇 |
23篇 | |
中国医学 | 9498篇 |
肿瘤学 | 153533篇 |
出版年
2021年 | 54887篇 |
2020年 | 35053篇 |
2019年 | 57966篇 |
2018年 | 70928篇 |
2017年 | 54124篇 |
2016年 | 59762篇 |
2015年 | 73861篇 |
2014年 | 108083篇 |
2013年 | 173386篇 |
2012年 | 88314篇 |
2011年 | 88124篇 |
2010年 | 115757篇 |
2009年 | 120414篇 |
2008年 | 75183篇 |
2007年 | 77724篇 |
2006年 | 88732篇 |
2005年 | 84197篇 |
2004年 | 86489篇 |
2003年 | 77486篇 |
2002年 | 67270篇 |
2001年 | 99019篇 |
2000年 | 91603篇 |
1999年 | 92324篇 |
1998年 | 64703篇 |
1997年 | 62634篇 |
1996年 | 60426篇 |
1995年 | 55944篇 |
1994年 | 50207篇 |
1993年 | 46725篇 |
1992年 | 64773篇 |
1991年 | 61786篇 |
1990年 | 58932篇 |
1989年 | 58154篇 |
1988年 | 53593篇 |
1987年 | 52906篇 |
1986年 | 49977篇 |
1985年 | 50338篇 |
1984年 | 46435篇 |
1983年 | 42468篇 |
1982年 | 41044篇 |
1981年 | 38810篇 |
1980年 | 36499篇 |
1979年 | 38325篇 |
1978年 | 34560篇 |
1977年 | 31583篇 |
1976年 | 28988篇 |
1975年 | 27564篇 |
1974年 | 28397篇 |
1973年 | 27294篇 |
1972年 | 25356篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
151.
152.
153.
Metabolism describes the series of chemical reactions that are concerned with the provision of energy to biological systems. They may be divided into reactions involved in energy yield (catabolism: demand exceeds supply), and energy storage (anabolism: supply exceeds demand). Regulation of these pathways is critical for homeostasis, and derangements in metabolism are seen in a wide variety of pathological processes. Understanding metabolism is key to the treatment of many diseases, notably diabetes, as well as underpinning clinical nutritional support. 相似文献
154.
155.
Die Anaesthesiologie - 相似文献
156.
157.
158.
Olga A. Klein Avril Drummond Jacqueline R. Mhizha-Murira Laura Mansford Roshan dasNair 《Neuropsychological rehabilitation》2019,29(4):491-512
While previous randomised controlled trials and meta-analyses offer only limited evidence for the effectiveness of cognitive rehabilitation, qualitative studies examining patient perspectives report more positive outcomes. This meta-synthesis of qualitative studies examined patient perspectives of cognitive rehabilitation for memory, attention, and executive function problems in people with multiple sclerosis. Using set eligibility criteria, we screened electronic databases, reference lists, and academic networks for relevant papers. Seven papers (195 participants) were selected. Two independent researchers conducted quality appraisals of papers. Data analysis, guided by the thematic synthesis approach, yielded six main themes. These suggested that patients benefitted from the group environment in rehabilitation. Cognitive rehabilitation facilitated the participants’ reflection and awareness of their cognitive deficits, and was associated with increased knowledge and understanding of their illness. Increased strategy use was reported and associated with improvements in cognitive functioning and greater confidence and perseverance. Participants reported emotional and social improvements, and felt more optimistic. Overall, these changes had a positive impact on participants’ quality of life. This synthesis of qualitative studies indicates that people with multiple sclerosis who experience cognitive deficits benefit from cognitive rehabilitation programmes. This finding must, however, be viewed in light of the limitations of this meta-synthesis. The meta-synthesis was registered in the PROSPERO database under CRD42017040148. 相似文献
159.
160.
Bela Anand-Apte Jennifer R. Chao Ruchira Singh Heidi Stöhr 《Journal of neuroscience research》2019,97(1):88-97
Sorsby fundus dystrophy (SFD), an autosomal dominant, fully penetrant, degenerative disease of the macula, is manifested by symptoms of night blindness or sudden loss of visual acuity, usually in the third to fourth decades of life due to choroidal neovascularization (CNV). SFD is caused by specific mutations in the Tissue Inhibitor of Metalloproteinase-3, (TIMP3) gene. The predominant histo-pathological feature in the eyes of patients with SFD are confluent 20–30 m thick, amorphous deposits found between the basement membrane of the retinal pigment epithelium (RPE) and the inner collagenous layer of Bruch's membrane. SFD is a rare disease but it has generated significant interest because it closely resembles the exudative or “wet” form of the more common age-related macular degeneration (AMD). In addition, in both SFD and AMD donor eyes, sub-retinal deposits have been shown to accumulate TIMP3 protein. Understanding the molecular functions of wild-type and mutant TIMP3 will provide significant insights into the patho-physiology of SFD and perhaps AMD. This review summarizes the current knowledge on TIMP3 and how mutations in TIMP3 cause SFD to provide insights into how we can study this disease going forward. Findings from these studies could have potential therapeutic implications for both SFD and AMD. 相似文献