全文获取类型
收费全文 | 11721篇 |
免费 | 1259篇 |
国内免费 | 53篇 |
专业分类
耳鼻咽喉 | 98篇 |
儿科学 | 348篇 |
妇产科学 | 312篇 |
基础医学 | 1706篇 |
口腔科学 | 269篇 |
临床医学 | 1383篇 |
内科学 | 2056篇 |
皮肤病学 | 137篇 |
神经病学 | 1178篇 |
特种医学 | 535篇 |
外国民族医学 | 1篇 |
外科学 | 1692篇 |
综合类 | 196篇 |
一般理论 | 6篇 |
预防医学 | 1222篇 |
眼科学 | 198篇 |
药学 | 804篇 |
中国医学 | 15篇 |
肿瘤学 | 877篇 |
出版年
2022年 | 86篇 |
2021年 | 182篇 |
2020年 | 97篇 |
2019年 | 162篇 |
2018年 | 192篇 |
2017年 | 160篇 |
2016年 | 156篇 |
2015年 | 214篇 |
2014年 | 285篇 |
2013年 | 394篇 |
2012年 | 572篇 |
2011年 | 544篇 |
2010年 | 285篇 |
2009年 | 311篇 |
2008年 | 528篇 |
2007年 | 504篇 |
2006年 | 502篇 |
2005年 | 514篇 |
2004年 | 473篇 |
2003年 | 436篇 |
2002年 | 401篇 |
2001年 | 366篇 |
2000年 | 389篇 |
1999年 | 339篇 |
1998年 | 167篇 |
1997年 | 165篇 |
1996年 | 155篇 |
1995年 | 134篇 |
1994年 | 142篇 |
1993年 | 109篇 |
1992年 | 259篇 |
1991年 | 240篇 |
1990年 | 263篇 |
1989年 | 275篇 |
1988年 | 245篇 |
1987年 | 225篇 |
1986年 | 220篇 |
1985年 | 225篇 |
1984年 | 173篇 |
1983年 | 142篇 |
1982年 | 123篇 |
1981年 | 102篇 |
1980年 | 99篇 |
1979年 | 148篇 |
1978年 | 127篇 |
1977年 | 104篇 |
1976年 | 99篇 |
1974年 | 102篇 |
1973年 | 108篇 |
1970年 | 80篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
This paper introduces the ‘foot function’ approach used by podiatrists in the treatment of lower limb musculoskeletal dysfunction. The aim is to demonstrate how podiatric theory has evolved its own perspective of mechanisms relating to normal and abnormal locomotion. Three individual podiatric paradigms are discussed, and a further theory allowing a working simplification of theory is introduced. Finally, an example of gait abnormality is discussed in relation to podiatric and physiotherapy perspectives.An insight into podiatric theory should enable therapists working within this field to develop a more holistic and multidisciplinary approach. It is the view of the authors that a closer working relationship between physiotherapists and podiatrists with an interest in movement dysfunction provides a better quality service for appropriate patients. 相似文献
5.
The treatment options of patients with urge incontinence are behavioral therapy, drug therapy and surgery. The evaluation and reported efficacy of these treatments, with particular reference to the potential placebo response in treatment is discussed. 相似文献
6.
7.
8.
9.
10.
An unusual, elongated, refractile cell morphology was observed in keratinocytes cultured from three patients with non-lethalis forms of junctional epidermolysis bullosa (JEB). To determine whether these changes might be related to altered cell adhesion, keratinocyte strains established from one patient were examined for adhesive, structural, and functional characteristics. JEB keratinocytes expressed keratin tonofilaments, as determined by staining with AE1 monoclonal antibodies and direct observation of tonofilaments by electron microscopy. JEB keratinocytes showed diminished cell-substratum adhesions, judged by interference reflection microscopy. Areas of diminished cell-substratum adhesion corresponded to F-actin-rich cell adhesions (focal adhesions) and not to cellular areas that abundantly express hemidesmosomal antigens. Analysis of cell-substratum adhesion by electron microscopy revealed extensive areas of cell-substratum separation in JEB keratinocytes that were not present in normal keratinocytes maintained in serum-free medium. Normal keratinocytes displayed numerous regions of focal contact between the ventral plasma membrane and the culture substratum, but these structures were not seen in JEB keratinocytes. Bundled actin filaments (stress fibers) were greatly diminished in expected regions of cell-substratum adhesion in JEB keratinocytes and, instead, displayed disorganized individual filaments. The growth rate of JEB keratinocytes was quite slow in culture, with a population doubling time of 2.7 d versus 1.5 d for normal keratinocytes under identical conditions. JEB keratinocytes also displayed a reduced ability to aggregate into colonies upon exposure to medium with increased extracellular calcium. JEB keratinocytes thus display adhesive, structural, and functional abnormalities that suggest this cell type may be central to the pathogenesis of junctional epidermolysis bullosa. Study of affected keratinocytes could be important to characterize associated molecular pathologies. 相似文献