全文获取类型
收费全文 | 26898篇 |
免费 | 2066篇 |
国内免费 | 100篇 |
专业分类
耳鼻咽喉 | 245篇 |
儿科学 | 685篇 |
妇产科学 | 647篇 |
基础医学 | 3493篇 |
口腔科学 | 658篇 |
临床医学 | 3032篇 |
内科学 | 5834篇 |
皮肤病学 | 453篇 |
神经病学 | 2763篇 |
特种医学 | 961篇 |
外国民族医学 | 1篇 |
外科学 | 4222篇 |
综合类 | 416篇 |
一般理论 | 23篇 |
预防医学 | 1983篇 |
眼科学 | 472篇 |
药学 | 1486篇 |
中国医学 | 38篇 |
肿瘤学 | 1652篇 |
出版年
2023年 | 219篇 |
2022年 | 349篇 |
2021年 | 648篇 |
2020年 | 498篇 |
2019年 | 609篇 |
2018年 | 743篇 |
2017年 | 560篇 |
2016年 | 663篇 |
2015年 | 661篇 |
2014年 | 930篇 |
2013年 | 1238篇 |
2012年 | 2032篇 |
2011年 | 2024篇 |
2010年 | 1086篇 |
2009年 | 903篇 |
2008年 | 1649篇 |
2007年 | 1580篇 |
2006年 | 1419篇 |
2005年 | 1472篇 |
2004年 | 1308篇 |
2003年 | 1145篇 |
2002年 | 1031篇 |
2001年 | 539篇 |
2000年 | 554篇 |
1999年 | 488篇 |
1998年 | 280篇 |
1997年 | 204篇 |
1996年 | 212篇 |
1995年 | 182篇 |
1994年 | 149篇 |
1993年 | 153篇 |
1992年 | 311篇 |
1991年 | 288篇 |
1990年 | 259篇 |
1989年 | 279篇 |
1988年 | 223篇 |
1987年 | 213篇 |
1986年 | 200篇 |
1985年 | 200篇 |
1984年 | 162篇 |
1983年 | 132篇 |
1982年 | 83篇 |
1981年 | 80篇 |
1980年 | 59篇 |
1979年 | 105篇 |
1978年 | 64篇 |
1976年 | 68篇 |
1974年 | 73篇 |
1972年 | 79篇 |
1971年 | 68篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
2.
Noreen M. Walsh Heinz Kutzner Luis Requena Lorenzo Cerroni 《Journal of cutaneous pathology》2019,46(9):698-708
We review the spectrum of cutaneous disorders associated with inflammatory and neoplastic plasmacytic pathology. Because plasma cells are derived from B‐lymphocytes our overview includes discussion of certain lymphoplasmacytic proliferations. It is structured along histopathological lines, addressing conditions characterized by (a) cutaneous plasma cell infiltrates, (b) deposits of plasma cell products or their derivatives in the skin and (c) miscellaneous, poorly understood cutaneous complications of plasmacytic disorders. Lesions arising primarily in the skin and those due to cutaneous involvement by multisystem disorders are addressed. The range includes a spectrum of tumefactive and circulatory manifestations. We highlight key clinical and pathological features of the different conditions and outline recent advances in our understanding of these entities. By emphasizing the dermatopathological characteristics of this spectrum of disorders we hope to hone the diagnostic accuracy of practitioners in the field. 相似文献
3.
Jasmine Poonian Nicola Walsham Thomas Kilner Elizabeth Bradbury Kristen Brooks Emma West 《Emergency medicine Australasia : EMA》2020,32(4):700-702
Emergency Medicine staff in Australia and New Zealand are at the forefront of the healthcare response to COVID‐19. This article describes a well‐being plan for ED staff that has been devised to mitigate against the negative psychological impact of the COVID‐19 pandemic. 相似文献
4.
5.
6.
7.
8.
Alan. B. Franklin Sarah N. Bevins Jeremy W. Ellis Ryan S. Miller Susan A. Shriner J. Jeffrey Root Daniel P. Walsh Thomas J. Deliberto 《Transboundary and Emerging Diseases》2019,66(2):705-714
Using data on waterfowl band recoveries, we identified spatially explicit hotspots of concentrated waterfowl movement to predict occurrence and spatial spread of a novel influenza A virus (clade 2.3.4.4) introduced from Asia by waterfowl from an initial outbreak in North America in November 2014. In response to the outbreak, the hotspots of waterfowl movement were used to help guide sampling for clade 2.3.4.4 viruses in waterfowl as an early warning for the US poultry industry during the outbreak . After surveillance sampling of waterfowl, we tested whether there was greater detection of clade 2.3.4.4 viruses inside hotspots. We found that hotspots defined using kernel density estimates of waterfowl band recoveries worked well in predicting areas with higher prevalence of the viruses in waterfowl. This approach exemplifies the value of ecological knowledge in predicting risk to agricultural security. 相似文献
9.
Nicola Flaum Emma J. Crosbie Richard J. Edmondson Miriam J. Smith Dafydd G. Evans 《Clinical genetics》2020,97(1):54-63
Ovarian cancer is the fourth most common cause of cancer-related death in women in the developed world, and one of the most heritable cancers. One of the most significant risk factors for epithelial ovarian cancer (EOC) is a family history of breast and/or ovarian cancer. Combined risk factors can be used in models to stratify risk of EOC, and aid in decisions regarding risk-reduction strategies. Germline pathogenic variants in EOC susceptibility genes including those involved in homologous recombination and mismatch repair pathways are present in approximately 22% to 25% of EOC. These genes are associated with an estimated lifetime risk of EOC of 13% to 60% for BRCA1 variants and 10% to 25% for BRCA2 variants, with lower risks associated with remaining genes. Genome-wide association studies have identified single nucleotide polymorphisms (SNPs) thought to explain an additional 6.4% of the familial risk of ovarian cancer, with 34 susceptibility loci identified to date. However, an unknown proportion of the genetic component of EOC risk remains unexplained. This review comprises an overview of individual genes and SNPs suspected to contribute to risk of EOC, and discusses use of a polygenic risk score to predict individual cancer risk more accurately. 相似文献
10.